Answer:
9 cm.
Step-by-step explanation:
The formula for the volume of a cylinder is base×height
If the base is a circle, then the formula is V=r²π×h, because the formula for the area of a circle is r²π.
We already have the area of the base, which equates to 22cm², and its volume, now all we need to do is find the height.
198=22×h
h=198/22
h=9 cm
Hope this helps!
The value of a new 2022 Jeep Wrangler Rubicon was $67,035 when it went on the market. The value of the car depreciates at a rate of 9.7% per year. Which function models the car's value, V, t years since 2022?
If the value of the 2022 Jeep Wrangler Rubicon depreciates at a rate of 9.7% per year, then its value after t years can be modeled by:
V(t) = 67,035(1 - 0.097)^t
Simplifying the right side:
V(t) = 67,035(0.903)^t
Therefore, the function that models the car's value, V, t years since 2022 is V(t) = 67,035(0.903)^t.
How many times do the graphs of the equations y = 2x + 4 and y = −x + 4 intersect?
Answer: They both intersect once.
Step-by-step explanation: Solving for x, we get:
3x = 0
x = 0
Now we can substitute x = 0 into either equation to find the y-coordinate:
y = 2(0) + 4 = 4
So the two lines intersect at the point (0,4).
Therefore, the graphs of the equations y = 2x + 4 and y = −x + 4 intersect once.
Answer:
It intersects once.
Step-by-step explanation:
To plot y = 2x + 4, you start at the y-intercept which is 4. Then you go up 2 times, and to the right once.
To plot y = -x + 4, you start at the y-intercept which is also at 4. Then you go down once and to the right one time.
The graph will intersect at (0, 4).
The figure shown is created by joining two rectangles..
3 ft
10 ft
3 ft
3. ft
Enter the area of the figure, in square feet. Need help please
The area of the figure is 39ft²
What is area of a rectangle?The area of a shape is the space occupied by the boundary of a plane figures like circles, rectangles, and triangles.
Area of a rectangle is expressed as ;
A = l × w
where l is the length and w is the width.
Dividing the shape into two;
The area of shape 1 = l× w
= 3× 7 = 21ft²
The area of shape 2 = l× w
= 6 × 3 = 18 ft²
therefore the total area = 21+18 = 39 ft²
therefore the area of the figure is 39ft²
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write a rational expression with denominator 6b that is equivalent to 1/3
Answer:
To write a rational expression with denominator 6b that is equivalent to 1/3, we need to find a value to multiply both the numerator and denominator of 1/3 by that will result in a denominator of 6b.
We can start by writing 1/3 as a fraction with denominator 1:
1/3 = 1/3 * 1/1
Next, we can multiply both the numerator and denominator by 2b:
1/3 * 2b/2b = 2b/6
Simplifying the fraction 2b/6, we get:
2b/6 = b/3
Therefore, the rational expression with denominator 6b that is equivalent to 1/3 is b/3.
Find the surface area of the figure
The surface area of the composite figure is 20048 sq. yd.
What is surface area of rectangular prism?The formula SA = 2lw + 2lh + 2wh can be used to get the surface area (SA) of a rectangular prism, where l, w, and h are the length, width, and height of the prism, respectively. The formula determines the areas of the rectangular prism's six faces: the four sides, which are identical rectangles with areas of lh or wh, and the top and bottom, which are also identical rectangles with areas of lw each.
The composite figure can be divided into two parts one rectangular prism and a trapezium prism.
The surface area of the rectangular prism is given by:
2(lb + bh + hl)
Substituting the values we have:
SA = 2(62 yd x 55 yd + 55 x 25 + 25 x 62)
SA = 2(3410 + 1375 + 1550)
SA = 2(6335) = 12670 sq. yd.
Now, the area of the trapezoidal prism is:
SA = (b1 + b2)h + (b1 + b2 + a + b) l
Substituting the values b1 = 55 yd, b2 = 7 yd, h = 7 yd, a = b = 25 yd, l = 62 yd we have:
SA = (55 + 7)(7) + (55 + 7 + 25 + 25)62
SA = 434 + 6944
SA = 7378 sq. yd
Now, the surface area of the composite figure is:
SA = 12670 + 7378 = 20048 sq. yd.
Hence, the surface area of the composite figure is 20048 sq. yd.
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[tex](7^{4} ) ^{4}[/tex]
The outcome of given exponential expression [tex]{(7^4)}^4[/tex] will be [tex]{(7)}^{16}[/tex].
What is an Exponential expression in mathematics?A number raised to a specific power is represented mathematically by an exponential expression. It is drafted in the style of "a" is the base, and "b" is the exponent. The base "a" is b times multiplied by itself.for eg:
In [tex]5^{9}[/tex] => 5 is base and 9 is exponent
In mathematics, exponential expression or exponential notation is frequently employed to conveniently and succinctly describe big or tiny quantities. Also, it is employed in fields where exponential growth or decay are important, such as computer programming and finance.
Now, Given:
[tex]{(7^4)}^4[/tex]
we know,
[tex]{(a^b)}^c = {(a)}^{b\cdot c}[/tex]
Hence, for given exponential expression, we get,
[tex]{(7^4)}^4 = {(7)}^{4\cdot4[/tex]
[tex]{(7)}^{4\cdot4} = {(7)}^{16[/tex]
Thus, option a.) is correct answer.
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Complete Question: What is the outcome of multiplying 7 raised to the power of 4 by itself, raised to the power of 4 or [tex]{(7^4)}^4[/tex]?
a.)[tex]{(7)}^{16}[/tex]
b.)[tex]{(7)}^{8}[/tex]
c.)[tex]{(7)}^{4^4}[/tex]
d.)[tex]{(7)}^{4}[/tex]
3x - 1 <_ 2x what is the answer
Answer:
x<-1/5
Step-by-step explanation:
Imma assume the _ is a - soo
3x-1<-2x
5x<-1
x<-1/5
do less republicans (group a) than democrats (group b) favor the government investing billions of dollars to improve the country's train system? one thousand republicans and one thousand democrats were asked if they favored spending billions to improve the country's train system. how would we write the alternative hypothesis?
The alternative hypothesis can be written as H₁: pA < pB.
The alternative hypothesis would be that there is a difference in the proportion of Republicans (Group A) and Democrats (Group B) who favor the government investing billions of dollars to improve the country's train system. Expressly, it would state that the proportion of Republicans who favor this investment is less than the proportion of Democrats who favor it:
H₁: pA < pB
where pA denotes the proportion of Republicans who favor the investment and pB denotes the proportion of Democrats who favor the investment.
In the alternative hypothesis, we actually create the relationship between the variables which are being tested in that situation. According to these, we come across the comparison among the variables and how much they differ from each other. The alternative hypothesis is the statement the researcher tries to prove by conducting a statistical analysis.
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Help asap Thank you in advance
The ball will hit the ground after 4 seconds (x2 = 4).
How to solveGiven the formula h(x) = -16x^2 + v0x + h0, we can plug in the values for the initial velocity (v0) and the initial height (h0) to find the equation that describes the ball's height as a function of time.
v0 = 64 ft/s (initial velocity)
h0 = 12 ft (initial height)
Now, we can write the function for the ball's height:
h(x) = -16x^2 + 64x + 12
To find when the ball hits the ground, we need to solve for x when h(x) = 0:
0 = -16x^2 + 64x + 12
This is a quadratic equation, and we can solve it using the quadratic formula:
x = (-b ± √(b^2 - 4ac)) / 2a
In this case, a = -16, b = 64, and c = 12.
x = (-64 ± √(64^2 - 4*(-16)12)) / 2(-16)
First, we find the discriminant (b^2 - 4ac):
64^2 - 4*(-16)*12 = 4096 + 768 = 4864
Now we can plug the discriminant back into the quadratic formula:
x = (-64 ± √4864) / (-32)
We have two possible solutions:
x1 = (-64 + √4864) / (-32)
x1 = (-64 + 64) / (-32)
x1 = 0
x2 = (-64 - √4864) / (-32)
x2 = (-64 - 64) / (-32)
x2 = 128 / 32
x2 = 4
Since x1 = 0 represents the initial time when the ball is kicked, we discard this solution.
Therefore, the ball will hit the ground after 4 seconds (x2 = 4).
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The height, in feet, after x seconds of an object launched straight up can be found by the function h(x)=−16x2+v0x+h0, where v0 is the initial velocity of the object and h0 is the initial height.
A ball is kicked straight up into the air from a height of 12 ft with an initial velocity of 64 ft/s. After how many seconds does the ball hit the ground?
Your cousin bought a used car. He paid a total of $12,755 for the car. The total cost includes: • The list price of the car, x • A 7% sales tax on the list price . Plus $450 in additional fees.
What is the price of the car your cousin bought?
List price:
Let's use the variable x to represent the list price of the car.
The total cost your cousin paid for the car is the list price plus a 7% sales tax on the list price, plus $450 in additional fees.
We can write this as an equation:
Total cost = List price + 0.07(List price) + 450
We know that the total cost your cousin paid was $12,755, so we can substitute that into the equation:
12,755 = x + 0.07x + 450
Simplifying the right side:
12,755 = 1.07x + 450
Subtracting 450 from both sides:
12,305 = 1.07x
Dividing both sides by 1.07:
x = 11,500
Therefore, the list price of the car your cousin bought was $11,500.
The list price of the car your cousin bought was $11,500.
What is an expression?An expression contains one or more terms with addition, subtraction, multiplication, and division.
We always combine the like terms in an expression when we simplify.
We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.
Example:
1 + 3x + 4y = 7 is an expression.com
3 + 4 is an expression.
2 x 4 + 6 x 7 – 9 is an expression.
33 + 77 – 88 is an expression.
We have,
Let's start by setting up an equation to represent the total cost of the car:
Total cost = List price + 7% of List price + $450
We know that the total cost is $12,755, so we can substitute that in:
$12,755 = List price + 0.07(List price) + $450
Simplifying this equation, we get:
$12,755 = 1.07(List price) + $450
Subtracting $450 from both sides, we get:
$12,305 = 1.07(List price)
Dividing both sides by 1.07, we get:
List price = $11,500
Therefore,
The list price of the car your cousin bought was $11,500.
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Callie owns a business and wants to know if the majority of her customers are satisfied. She surveys a random sample of 25 customers, and 17 customers report being satisfied. In a second random sample of 25 customers, 12 customers report being satisfied. The results of the third and fourth surveys of random samples of 25 customers finds 14 and 9 satisfied customers, respectively. Which statement BEST describes the sample mean absolute deviation for this data set?
Therefore, the statement "The sample mean absolute deviation is likely to be higher for the samples with lower satisfaction rates" would be the BEST description of the MAD for this data set.
To calculate the mean absolute deviation (MAD), we first need to find the mean of each sample.
Sample 1:[tex]17/25 = 0.68[/tex]
Sample 2: [tex]12/25 = 0.48[/tex]
Sample 3: [tex]14/25 = 0.56[/tex]
Sample 4: [tex]9/25 = 0.36[/tex]
Next, we calculate the deviation of each observation from its respective sample mean:
Sample 1: |0.68 - x1|, |0.68 - x2|, ..., |0.68 - x25|
Sample 2: |0.48 - x1|, |0.48 - x2|, ..., |0.48 - x25|
Sample 3: |0.56 - x1|, |0.56 - x2|, ..., |0.56 - x25|
Sample 4: |0.36 - x1|, |0.36 - x2|, ..., |0.36 - x25|
where xi is the satisfaction rating (0 or 1) of the Ith customer in the sample.
The MAD is the average of these deviations:
MAD = (|0.68 - x1| + |0.68 - x2| + ... + |0.36 - x25|)/100
Since we don't know the actual ratings of the customers, we cannot calculate the MAD exactly. However, we can say that the MAD is likely to be higher for samples 2 and 4, which have lower satisfaction rates, compared to samples 1 and 3, which have higher satisfaction rates. Therefore, the statement "The sample mean absolute deviation is likely to be higher for the samples with lower satisfaction rates" would be the BEST description of the MAD for this data set.
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Hungry Harry is a giant ogre with an appetite that fluctuates throughout the day. H(t) models the weight
of sheep (in kg) that Harry would like to swallow t hours after he wakes up. Here, t is entered in radians.
H (t) = 12 sin (2/24t) +15
What is the second time after Harry wakes up that he feels like consuming 17 kg of sheep?
Round your final answer to the nearest tenth of an hour.
The second time when harry feel like consuming 17 kg of sheep after he wakes up is equal to 39.7 hours ( round to nearest tenth of an hour).
Function is equal to
H (t) = 12 sin (2/24t) +15
Where H(t) models the weight of sheep in kg that Harry like to swallow in 't' hours after wakes up.
't' in radians.
Harry wants to consumes 17kg
⇒ H(t) = 17 for t.
Substituting the given expression for H(t), we get,
⇒ 12 sin(2/24 t) + 15 = 17
⇒ 12 sin(2/24 t) = 2
⇒ sin(2/24 t) = 1/6
⇒ 2/24 t = sin^(-1)(1/6)
We know that sin^(-1)(1/6) = 0.167
Substitute the value we get,
⇒ t = 12 × 0.167
⇒ t = 2.004 radians
This gives us the first time after Harry wakes up that he feels like consuming 17 kg of sheep.
For the second time,
Add one full period to the first time, since the function H(t) has a period of 12π/2 = 6π.
The second time is,
t = 2.004 + 6π
= 2.004 + 6×3.14
= 20.844 radians
To round to the nearest tenth of an hour,
Since there are 12 hours in a full revolution.
Convert radians to hours by dividing by 2π and then multiplying by 12.
t = 20.844/(2π) × 12
= 3.31 × 12 hours
= 39.69
= 39.7 (rounded to the nearest tenth)
Attached graph.
Therefore, the second time after Harry wakes up that he feels like consuming 17 kg of sheep is approximately 39.7 hours after he wakes up.
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Use the times and corresponding closing prices of the stock to create coordinate pairs. Let x represent the number of weeks since the first data point, and let y represent the closing price at each time. So, x = 0 represents the data point from 5 years ago. There are 52 weeks in a year, and you can write the time for each closing price recorded in terms of weeks that have passed since 5 years ago, when x = 0. Fill in the table to represent your data as coordinate pairs.
x (Weeks Since 5 Years Ago) y (Closing Price, in $)
most recent 260
7 days ago 259
1 month ago 256
6 months ago 234
1 year ago 208
3 years ago 104
5 years ago 0
The complete table is:
x (weeks since 5 years ago) y (in $)
260 150.01
259 150.06
256 149.42
234 142.03
208 152.79
104 97.65
0 70.43
The coordinates are given by (260, 150.01), (259, 150.06), (256, 149.42), (234, 142.03), (208, 152.79), (104, 97.65), (0, 70.43).
The X axis suggests the weeks since 5 years ago and Y axis suggests the closing price at each time.
Number of weeks in a year is 52 weeks.
Most recent time suggests, x = 52*5 = 260
when x = 260, then y = 150.01
7 days ago that is 1 weeks ago, x = 260 -1 = 259
The value of y then = $ 150.06
1 months ago that is 4 weeks ago, x = 260 - 4 = 256
The closing price then is, y = 149.42
6 months ago, x = 260 - 52/2 = 260 - 26 = 234
The closing price then is, y = 142.03
1 year ago that is 52 years ago, x = 260 - 52 = 208
The closing price was then, y = 152.79
3 years ago, x = 260 - 52*3 = 260 - 156 = 104
The closing price was then, y = 97.65
5 years ago, x = 260 - 52*5 = 260 - 260 = 0
The closing price was then, y = 70.43.
Then the coordinates are (260, 150.01), (259, 150.06), (256, 149.42), (234, 142.03), (208, 152.79), (104, 97.65), (0, 70.43).
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Write the absolute value equations in the form lx-bl is greater than or equal to or lx-bl is less than or equal to write an absolute value inequality that has the following solution set x < or equal to -9 or x > or equal to -5
The final absolute value inequality that represents the solution set x ≤ -9 or x ≥ -5 is |x + 7| ≥ 2.
If the absolute value expression is greater than or equal to a number (e.g. |x| >= 5).
We can write it as two separate inequalities: x >= 5 or x <= -5.
The absolute value expression is less than or equal to a number (e.g. |x| <= 3)
We can write it as the single inequality: -3 <= x <= 3.
Using these rules:
We can write an absolute value inequality that has the solution set x <= -9 or x >= -5200 as follows:
| x + 2604 | >= 5193
To see why this works,
Let's first look at the case where x is less than or equal to -9. In this case, we have:
x + 2604 <= -9
x <= -2613
Plugging this into our inequality:
| -2613 | >= 5193
Which is true, since |-2613| = 2613 >= 5193.
Now let's look at the case where x is greater than or equal to -5200. In this case, we have:
x + 2604 >= -5200
x >= -7804
Plugging this into our inequality, we get:
| -7804 | >= 5193
Which is also true, since |-7804| = 7804 >= 5193.
Therefore, the inequality | x + 2604 | >= 5193 has the solution set x <= -9 or x >= -5200, as desired. I hope this helps! Let me know if you have any other questions.
Midpoint = (-9 + (-5)) / 2 = -7
The absolute value inequality will have the form |x - (-7)|.
|x + 7| ≥ 2, since the distance between -9 and -7 is 2.
|x + 7| ≤ -2, since the distance between -5 and -7 is -2.
However,
An absolute value cannot be negative, so the second inequality doesn't make sense. Therefore, we'll only use the first inequality.
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Homework 18.1.-trigonometric ratios
Find the 3 trigonometric ratios. If needed, reduce fractions.
The 3 trigonometric ratios of the right triangle with respect to angle A are as follows:
sin A = 12 / 13
cos A = 5 / 13
tan A = 12 / 5
How to find angles of a right triangle using trigonometric ratios?The side of a right angle triangle can be found using trigonometric ratios as follows:
Therefore, let's find the 3 trigonometric ratios with respect to angle A.
sin A = opposite / hypotenuse
sin A = 36 / 39
sin A = 12 / 13
cos A = adjacent / hypotenuse
cos A = 15 / 39
cos A = 5 / 13
tan A = opposite / adjacent
tan A = 36 / 15
tan A = 12 / 5
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John buys new baseball equipment for $2000. The purchase made is with a credit card that has a 19% APR. John makes a $150 payment monthly. How many months will it take John to pay off the balance?
It will take John approximately 17 months to pay off the balance.
What is simple interest?
Simple Interest (S.I.) is the method of calculating the interest amount for a particular principal amount of money at some rate of interest.
Assuming that John does not use the credit card for any other purchases and that the credit card company uses a simple interest calculation method, we can use the following steps to calculate the number of months it will take John to pay off the balance:
Calculate the monthly interest rate by dividing the annual percentage rate (APR) by 12:
Monthly interest rate = 19% / 12 = 0.01583
Calculate the monthly finance charge by multiplying the outstanding balance by the monthly interest rate:
Monthly finance charge = $2000 x 0.01583 = $31.66
Subtract the monthly payment from the monthly finance charge to get the amount that will be applied to the outstanding balance:
Payment applied to balance = $150 - $31.66 = $118.34
Divide the outstanding balance by the payment applied to balance to get the number of months it will take to pay off the balance:
Number of months to pay off balance = $2000 / $118.34 = 16.9
(rounded up to the nearest whole number)
Therefore, it will take John approximately 17 months to pay off the balance.
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sam has a goal of walking 3 1/2 miles by the end of the day he walks 1 1/8 miles before lunch and 3/4 mile after resting what is the remaining distance in miles that sam needs to walk to reach his goal?
Show your work
Sam still needs to walk 7/8 of a mile to reach his goal.
How to determine how many miles that sam needs to walk to reach his goalTo find out how many miles Sam has already walked, we add the distance he walked before lunch (1 1/8 miles) to the distance he walked after resting (3/4 mile):
1 1/8 + 3/4 = 9/8 + 3/4 (since we need a common denominator of 8)
= 18/8 + 3/8
= 21/8
So Sam has already walked 2 5/8 miles.
To find out how much further he needs to go to reach his goal of 3 1/2 miles, we subtract what he's already walked from his goal:
3 1/2 - 2 5/8 = 7/2 - 21/8 (again, we need a common denominator of 8)
= 28/8 - 21/8
= 7/8
So Sam still needs to walk 7/8 of a mile to reach his goal.
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the reason why we need to have leap years is because group of answer choices the year does not contain an exact multiple of 30-day months. the year does not contain an exact multiple of 7-day weeks. the year does not contain an exact multiple of 24-hour days. some years are longer than others because sometimes it just takes a little longer to go once around the sun.
A year is approximately 365.24 days long, so without leap years, our calendar would slowly become out of sync with
the Earth's orbit around the sun.
The reason why we need to have leap years is because the year does not contain an exact multiple of 24-hour days.
This would eventually cause the seasons to occur at different times of the year.
To keep the calendar aligned, we add an extra day (February 29th) to the calendar every four years, making the year
366 days long.
A year is approximately 365.24 days long, so without leap years, our calendar would slowly become out of sync with
the Earth's orbit around the sun.
This ensures that the calendar year stays in sync with the astronomical year.
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What is the value of the expression?
12.325-(2.24 times 3.9)
Please hurry!
PLEASE ANSWER ASAP
1. How many atoms are present in 8.500 mole of chlorine atoms?2. Determine the mass (g) of 15.50 mole of oxygen.
3. Determine the number of moles of helium in 1.953 x 108 g of helium.
4. Calculate the number of atoms in 147.82 g of sulfur.
5. Determine the molar mass of Co.
6. Determine the formula mass of Ca3(PO4)2.
IT WOULD BE HELPFUL
SHOW WORK
The Number of atoms ≈ 5.119 x 10^24 atoms
The Mass ≈ 248.0 g
Mass ≈ 248.0 g
How many atoms are present in 8.500 mole of chlorine atoms?To find the number of atoms, we use Avogadro's number, which is 6.022 x 10^23 atoms/mole.
Number of atoms = (8.500 moles) * (6.022 x 10^23 atoms/mole)
Number of atoms ≈ 5.119 x 10^24 atoms
Determine the mass (g) of 15.50 mole of oxygen.To find the mass, we need the molar mass of oxygen, which is 16.00 g/mole.
Mass = (15.50 moles) * (16.00 g/mole)
Mass ≈ 248.0 g
Determine the number of moles of helium in 1.953 x 10^8 g of helium.
To find the number of moles, we need the molar mass of helium, which is 4.00 g/mole.
Number of moles = (1.953 x 10^8 g) / (4.00 g/mole)
Number of moles ≈ 4.883 x 10^7 moles
Calculate the number of atoms in 147.82 g of sulfur.
To find the number of atoms, we first need to find the number of moles of sulfur, and then use Avogadro's number. The molar mass of sulfur is 32.07 g/mole.
Number of moles = (147.82 g) / (32.07 g/mole)
Number of moles ≈ 4.609 moles
Number of atoms = (4.609 moles) * (6.022 x 10^23 atoms/mole)
Number of atoms ≈ 2.772 x 10^24 atoms
Determine the molar mass of Co.
The molar mass of cobalt (Co) is 58.93 g/mole.
Determine the formula mass of Ca3(PO4)2.
To find the formula mass, we need to add up the molar masses of all the elements in the compound.
Ca3(PO4)2 contains 3 calcium (Ca) atoms, 2 phosphorus (P) atoms, and 8 oxygen (O) atoms.
Molar mass of Ca = 40.08 g/mole
Molar mass of P = 30.97 g/mole
Molar mass of O = 16.00 g/mole
Formula mass = (3 * 40.08) + (2 * 30.97) + (8 * 16.00)
Formula mass = 120.24 + 61.94 + 128.00
Formula mass ≈ 310.18 g/mole
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help me please with this question what is 11/12 divided by 4
Answer:
[tex]\frac{11}{8}[/tex]
Step-by-step explanation:
[tex]\frac{11}{2}[/tex] ÷ 4 = [tex]\frac{11}{2}[/tex] x [tex]\frac{1}{4}[/tex] = [tex]\frac{11}{8}[/tex]
So, the answer is [tex]\frac{11}{8}[/tex]
Find the area of the parallelogram 13cm 13cm 16cm
angle opposite 16 = [tex]sin-1(\sqrt(1 - cos2(angle opposite 16))[/tex] angle opposite 16 = [tex]sin-1(\sqrt(1 - (-0.442)2)[/tex]angle opposite 16 = 118.7 degrees
What is parallelograms?In Euclidean geometry, a parallelogram is a simple quadrilateral with two sets of parallel sides. A parallelogram is a kind of quadrilateral in which both sets of opposite sides are parallel and equal. Parallelograms are classified into four types, three of which are unique. The four distinct shapes are parallelograms, squares, rectangles, and rhombuses. A quadrilateral is a parallelogram when it has two sets of parallel sides. The opposing sides and angles of a parallelogram are both the same length. The internal angles on the same side of the horizontal line are also angles. The total number of internal angles is 360.
To calculate the area of a parallelogram, multiply the base by the height. Nevertheless, the height is not mentioned in this situation. Alternatively, we may use the following formula to calculate the area of a parallelogram:
The area is defined as follows: base x height x sin (angle between base and height)
[tex]16^2 = 13^2 + 13^2 - 2(13)(13) (13)[/tex]
cos(opposite angle 16) 256 = 338 − 338
cos(opposite angle 16) cos(opposite angle 16) = -0.442
We know the angle is between 90 and 180 degrees since the cosine is negative. To get the angle in that range, we may use the inverse sine function:
angle opposite 16 = [tex]sin-1(\sqrt(1 - cos2(angle opposite 16))[/tex] angle opposite 16 = [tex]sin-1(\sqrt(1 - (-0.442)2)[/tex]angle opposite 16 = 118.7 degrees
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there are 90 people in the restaurant. the probability of someone ordering a drink with the food is 60%. use normal approximation of binomial distribution to answer the following 6 questions. 1. what is the mean of the normal distribution? 2. what is the standard deviation of the normal distribution? 3. what is the probability that exactly 50 people will order a drink? 4. what the probability that more than 50 people will order a drink? 5. what is the probability that less than 50 people will order a drink? 6. what is the probability that between 52 or more and 56 or less people will order a drink?
1. Mean = 54
2. Standard Deviation = 6.3
3. Probability = 0.077
4. Probability = 0.845
5. Probability = 0.155
6. Probability = 0.323
please help it’s 50 points if you answer!! it would help sm!!
The five number summary for the test scores and other measures are:
Mean ⇒ 81.7Median ⇒ 83.5Mode ⇒ NoneMAD ⇒ 10.07Range ⇒ 56Q1 ⇒ 74.5Q3 ⇒ 91.5IQR ⇒ 17Outliers ⇒ 42How to find the five number summary ?To find the mean test score, sum up all the test scores and divide by the total number of students:
mean = (42 + 68 + 70 + 72 + 74 + 75 + 79 + 80 + 82 + 83 + 84 + 85 + 86 + 87 + 91 + 92 + 94 + 95 + 97 + 98) / 20
mean = 1628 / 20
mean = 81.4
To find the median test score, find the middle value(s) of the ordered scores.
median = (83 + 84) / 2
median = 167 / 2
median = 83.5
The mode is the score that appears most frequently. In this case, there is no mode, as all scores appear only once.
To calculate the Mean Absolute Deviation (MAD), find the mean of the absolute differences between each score and the mean score:
MAD = (|42-81.4| + |68-81.4| + ... + |98-81.4|) / 20
MAD = 246.6 / 20
MAD = 12.33
To calculate the range, subtract the smallest score from the largest score:
range = 98 - 42
range = 56
To find Q1 (the first quartile), find the median of the lower half of the data.
Q1 = median of (42, 68, 70, 72, 74, 75, 79, 80, 82, 83)
Q1 = (74 + 75) / 2
Q1 = 74.5
To find Q3 (the third quartile), find the median of the upper half of the data.
Q3 = median of (84, 85, 86, 87, 91, 92, 94, 95, 97, 98)
Q3 = (91 + 92) / 2
Q3 = 91.5
To calculate the Interquartile Range (IQR), subtract Q1 from Q3:
IQR = Q3 - Q1
IQR = 91.5 - 74.5
IQR = 17
The only score outside the lower bound (below 49) is 42. There are no scores above the upper bound (117). So, the only outlier in the data set is the score of 42.
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A box of chocolates contains five milk chocolates, three dark chocolates, and four white chocolates. You randomly select and eat three chocolates. The first piece is milk chocolate, the second is white chocolate, and the third is milk chocolate. Find the probability of this occuring.
A. 28/165
B. 1/8
C. 180/1331
D. 2/33
please help me…i’ll give brainliest
The cone have measures for the base, lateral, and surface areas as 77.6 mm², 330 mm², and 408.6 mm² respectively.
How to evaluate for the areas of the coneThe formula for the surface area of a cone is:
A = πr² + πrs
Where: A = surface area r = radius of the base s = slant height of the cone
Base area = 22/7 × 5 mm × 5 mm
Base area = 78.6 mm²
Lateral area = 22/7 × 5 mm × 21 mm
Lateral area = 330 mm³
Surface area = 78.6 mm + 339 mm²
Surface area = 408.6 mm²
Therefore, the cone have measures for the base, lateral, and surface areas as 77.6 mm², 330 mm², and 408.6 mm² respectively.
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When Ranim started karate, her highest kick went
11
0
∘
110
∘
110, degrees from the ground. Her instructor asked her to practice until her highest kick goes
15
5
∘
155
∘
155, degrees from the ground. Which equation will tell us the measure of the additional angle,
a
aa, that Ranim's kick needs to go to reach
15
5
∘
155
∘
155, degrees from the ground?
Choose 1 answer:
The equation that will tell us measure of additional angle, a, that Ranim's kick needs to go to reach 155 degrees from the ground is given option 155 - 110 = a.
Highest kick went when Ranim started karate from the ground is
= 110 degrees
Highest kick limit given by instructor from the ground = 155 degrees
This equation represents the difference between the final desired angle of 155 degrees and the initial angle of 110 degrees.
Which Ranim's kick went when she started karate.
The result of this subtraction will give us the measure of the additional angle, a.
That Ranim needs to add to her kick to reach the new desired angle.
Therefore, equation representing the measure of the additional angle a, of Ranim karate kick is equal to 155 - 110 = a.
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The above question is incomplete, the complete question is:
When Ranim started karate, her highest kick went 110 degrees from the ground. Her instructor asked her to practice until her highest kick goes 155 degrees from the ground. Which equation will tell us the measure of the additional angle, a, that Ranim's kick needs to go to reach 155 degrees from the ground?
155−110=a
155+110=a
180−110=a
155+90=a
HELP!! I USALLY GET THESE WRONG HERES A SCREEN SHOT THIS IS FROM KHAN BTW
Answer:
Step-by-step explanation:
How many seconds will it take the model rocket to reach its maximum height?
The answers to the following prompts are give as follows:
9 (c) the time taken for rocket to hit the ground is 5
10 (c) the maximum height is 4
11 (b) the solutions of 16x² - 64 = 0 are -4 and 4
9) To find the time it takes the rocket to hit the ground, we need to find the value of s when h(s) = 0 since h(s) represents the height of the rocket.
So we need to solve the equation: -3s^2 + 6s + 45 = 0.
Factoring, we get -3(s - 5)(s + 3) = 0. So s = 5 or s = -3. Since time cannot be negative, we take s = 5.
Therefore, the answer is (c) 5.
10 ) The maximum height of the rocket occurs at the vertex of the parabola given by the function h(s) = -3s^2 + 6s + 45. The s-coordinate of the vertex is given by s = -b/2a, where a = -3 and b = 6. So s = -6/-6 = 1. Therefore, the answer is (a) 1.
11) We can solve the equation 16x² - 64 = 0 by factoring out the greatest common factor, which is 16: 16(x² - 4) = 0.
Then, we can factor the quadratic expression as a difference of squares: 16(x + 2)(x - 2) = 0. Therefore, the solutions are x = -2 and x = 2, and the answer is (b) -4 and 4.
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The points (2, −4) and (2, 7) are on a
coordinate plane. What is the distance
between the points?
The distance between the points (2, -4) and (2, 7) is 11 units.
What is distance?
In mathematics, the distance between two points is a numerical value that represents the amount of space between them. The distance between two points is calculated using the Pythagorean theorem, which applies to any two points in a two-dimensional or three-dimensional space.
The two points have the same x-coordinate of 2, so they lie on a vertical line. To find the distance between them, we need to find the difference between their y-coordinates.
The y-coordinate of the first point is -4 and the y-coordinate of the second point is 7. Therefore, the difference between the y-coordinates is:
7 - (-4) = 7 + 4 = 11
So the distance between the two points is 11 units.
Therefore, the distance between the points (2, -4) and (2, 7) is 11 units.
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