Answer:
The price was originally 16,812.00
Step-by-step explanation:
25% of 13,450 is 3,362.50.
You have the option to pick between an action, horror, or
romantic comedy movie. You can also go at either 5pm, 7pm,
8pm, or 9pm. What is the total number of possible outcomes?
5-1 Additional Practice 1. Look at the paper to the right. a. Write an equation to represent the description. 8 more than 4 times number 28 b. Describe a real-world situation the equation could represent.
HELP I CANT GET LUNCH DETENTION
linear Equation to represent the description "8 more than 4 times number 28" is: y = 4x + 8
What is linear equation ?
A linear equation is an algebraic equation that describes a straight line relationship between two variables, typically denoted as x and y. The general form of a linear equation is:
y = mx + b
where y is the dependent variable, x is the independent variable, m is the slope of the line, and b is the y-intercept (the point at which the line crosses the y-axis).
The slope, m, represents the rate of change of y with respect to x, or how steep the line is. It is calculated as the change in y divided by the change in x between any two points on the line.
According to the question:
a. An equation to represent the description "8 more than 4 times number 28" is:
y = 4x + 8
where x represents the number 28, and y represents the result of multiplying 28 by 4 and then adding 8.
b. A real-world situation that this equation could represent is the cost of purchasing a certain number of items. For example, if the price of one item is $28, and there is a discount of 8 dollars for every four items purchased, the equation y = 4x + 8 could be used to calculate the total cost y of purchasing x items. The 4x term represents the cost of the items before the discount, and the +8 term represents the discount. For instance, if a customer wants to purchase 12 items, they would pay 4 * $28 = $112 for the first 12 items, minus $8 for the discount, resulting in a total cost of $104.
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Pls just say a b c or d
Answer:
c
Step-by-step explanation:
what is the difference of (4m^2-5) -(5m-20)
Answer:
4m^2+15-5m
Step-by-step explanation:
Remove parentheses.
4m^2-5-5m+20
Collect like terms.
4m^2+(-5+20)-5m
Simplify
4m^2+15-5m
th eproduct of two consecutive odd integers positive is 77 more than twice the larger. find the intergers please. I cannot set up "product" consecutive integers?
the product is x*(x+2)
To find the two consecutive odd integers, let's set up an equation using the given information. Let x be the smaller odd integer, then the next consecutive odd integer is x+2.
The problem states that the product of these two integers is 77 more than twice the larger integer. In equation form, this can be written as:
x * (x + 2) = 2(x + 2) + 77
Now, let's solve for x:
x * (x + 2) = 2x + 4 + 77
x^2 + 2x = 2x + 81
x^2 = 81
To find the value of x, take the square root of both sides:
√(x^2) = √81
x = 9
So, the smaller odd integer is 9. The next consecutive odd integer is 9 + 2 = 11.
Therefore, the two consecutive odd integers are 9 and 11.
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The two consecutive odd integers are 9 and 11.
How to find consecutive integers?To find the two consecutive odd integers whose product is 77 more than twice the larger, we can set up the following equation:
x * (x + 2) = 2(x + 2) + 77
Here, x represents the first odd integer, and x + 2 represents the second consecutive odd integer. Now, let's solve the equation step by step:
1. Expand the equation: x^2 + 2x = 2x + 4 + 77
2. Simplify the equation: x^2 + 2x = 2x + 81
3. Subtract 2x from both sides: x^2 = 81
4. Take the square root of both sides: x = ±9
Since we're looking for positive integers, x = 9. Therefore, the two consecutive odd integers are 9 and 11.
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If the ratio of the number of cats to dogs at an
animal shelter is 9 to 5, which of the following is
the possible number of cats to dogs at the animal
shelter?
Answer:
If the ratio of the number of cats to dogs at the animal shelter is 9 to 5, this means that for every 9 cats at the shelter, there are 5 dogs.
We can express this ratio as:
number of cats : number of dogs = 9 : 5
To find the possible number of cats to dogs, we need to look for pairs of numbers that have a ratio of 9:5. Here are some possible pairs:
9 cats : 5 dogs
18 cats : 10 dogs
27 cats : 15 dogs
36 cats : 20 dogs
45 cats : 25 dogs
54 cats : 30 dogs
...
We can see that there are infinitely many possible pairs of numbers that have a ratio of 9:5. To narrow down the possibilities, we need more information such as the total number of animals at the shelter or the number of cats or dogs at the shelter.
The vertices of a square are located at (0, 2), (2, 0), (0, -2), and (-2, 0).
Select all transformations that will carry this square onto itself.
A reflection across the line y = x
B reflection across the line y = -X
C reflection across the x-axis
D 45° rotation about the origin
E 90° rotation about the origin
Answer:
Step-by-step explanation:
A reflection across the line y = x will not carry the square onto itself, since the vertex (0, 2) would be reflected to (2, 0) which is not a vertex of the original square.
A reflection across the line y = -x would also not carry the square onto itself, since the vertex (0, 2) would be reflected to (−2, 0) which is not a vertex of the original square.
However, a reflection across the x-axis would carry the square onto itself since all of the vertices lie in the same quadrant, and reflecting across the x-axis does not change their signs.
A 45° or 90° rotation about the origin would also carry the square onto itself since the square has rotational symmetry of order 4.
Therefore, the correct answers are C, D, and E.
A primary credit card holder has a current APR of 16.75%. What is the monthly periodic interest rate, rounded to the nearest hundredth of a percent?
To calculate the monthly periodic interest rate from an annual percentage rate (APR), we need to divide the APR by 12 (the number of months in a year). We can use the following formula:
Monthly periodic interest rate = APR / 12
In this case, the APR is 16.75%, so we can plug it into the formula and simplify:
Monthly periodic interest rate = 16.75% / 12
Monthly periodic interest rate = 1.395833...%
Rounding to the nearest hundredth of a percent, we get:
Monthly periodic interest rate = 1.40%
Therefore, the monthly periodic interest rate for the primary credit card holder is 1.40%.
1-3 answers the questions
The solution of the given problem of equation comes out to be the quadratic function's expression is [tex]y = -2x² + 8x + 3[/tex]
What is an equation?Variable words are commonly used in complex algorithms to show uniformity between two incompatible claims.
Academic expressions called equations are used to show the equality of various academic numbers. Instead of a unique formula that splits 12 into two parts and can be used to analyse data received from [tex]y + 7[/tex] , normalization in this case yields b + 7.
Here,
A quadratic function's curve is shown in the provided illustration. The quadratic function's expression is
=> [tex]y = -2x² + 8x + 3[/tex]
We can use the knowledge that a quadratic function's standard form is
=> [tex]y = ax² + bx + c[/tex] , where a, b, and c are constants, to see this.
When y = [tex]-2x² + 8x + 3[/tex] is provided,
we can see that a = -2, b = 8, and c = 3 by comparing it to the standard form.
Therefore, the quadratic function's expression is [tex]y = -2x² + 8x + 3[/tex]
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The relation between hours studied and LSAT scores in a random sample of students is found to be S = 130 + 2.2h. How will a student’s score be affected if she studies for 10 hours?
Answer:
We can use the given equation to find the expected LSAT score (S) for a student who studies for 10 hours:
S = 130 + 2.2h
S = 130 + 2.2(10)
S = 130 + 22
S = 152
Therefore, if a student studies for 10 hours, we would expect her LSAT score to be 152.
How do I solve this challenging math problem?
Answer:
13/32
Step-by-step explanation:
You want the area of the shaded portion of the unit square shown.
CircumcenterPoints B, C, E are shown as equidistant from point F, so will lie on a circle centered at F. The center of that circle is at the point of coincidence of the perpendicular bisectors of BE, BC, and CE.
Without loss of generality, we can let line EF lie on the x-axis such that E is at the origin. Chord EB of the circle has a rise of 1/2 for a run of 1, so a slope of 1/2. Its midpoint is (1, 1/2)/2 = (1/2, 1/4). The perpendicular line through this point will have slope -2, so its equation can be written ...
y -1/4 = -2(x -1/2)
y = -2x +5/4
Then the x-intercept (point F) will have coordinates (0, 5/8):
0 = -2x +5/4 . . . . . y=0 on the x-axis
2x = 5/4
x = 5/8
TrapezoidTrapezoid EFCD will have upper base 5/8, lower base 1, and height 1/2. Its area is ...
A = 1/2(b1 +b2)h
A = (1/2)(5/8 +1)(1/2) = (1/4)(13/8) = 13/32
The shaded area is 13/32.
__
Additional comment
The point-slope equation of a line through (h, k) with slope m is ...
y -k = m(x -h)
a spherical snowball is melting in such a manner that its radius is changing at a constant rate, decreasing from 20 cm to 10 cm in 30 minutes. at what rate, in cm3 per minute, is the volume of the snowball changing at the instant the radius is 9 cm?
The volume of the snowball is decreasing at a rate of approximately 108π cubic centimeters per minute when the radius is 9 cm.
The volume V of a sphere with radius r is given by the formula V = (4/3)πr^3. To find the rate at which the volume is changing with respect to time, we need to take the derivative of V with respect to time t. Using the chain rule, we get:
dV/dt = (dV/dr) * (dr/dt)
Since the radius is changing at a constant rate, we can calculate dr/dt by dividing the change in radius by the time interval:
dr/dt = (10 cm - 20 cm) / (30 minutes) = -1/3 cm/min
To find dV/dr, we can take the derivative of the volume formula with respect to r:
dV/dr = 4πr^2
Substituting the given radius of 9 cm, we get:
dV/dr = 4π(9)^2 = 324π cm^2
Finally, we can substitute these values into the formula for dV/dt:
dV/dt = (dV/dr) * (dr/dt) = 324π cm^2 * (-1/3 cm/min) = -108π cm^3/min
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Determine how many places the following 2 conic intersect at and if they intersect find the point or points of intersection. Solve the system over the real numbers for 19 and 20. x^(2)+y^(2)=34 3x-3y=6
The intersection points of the two conics are therefore[tex](1 + √14, -1 + √14)[/tex]and [tex](1 - √14, -1 - √14).[/tex]Hence, the two conics intersect at two points.
The point or points of intersection and the number of places the following 2 conic intersect is to be determined. The system over the real numbers for [tex]x² + y² = 34 and 3x - 3y = 6[/tex] is to be solved.
To determine how many points the following 2 conic intersect at, the two equations must be solved simultaneously. The points of intersection can then be determined by substituting the value of x or y into the other equation and solving for the remaining variable.The equation 3x - 3y = 6 is the equation of a straight line. Solving the equation for y, [tex]y = x - 2[/tex].
So the line passes through the point (0, -2) and (2, 0) on the x-axis. Now, substitute the value of y into the equation x² + y² = 34 to get[tex]x² + (x - 2)² = 34[/tex], expanding this gives 2x² - 4x - 26 = 0, which simplifies to x² - 2x - 13 = 0.The solution to the quadratic equation [tex]x² - 2x - 13 = 0[/tex] is given as[tex]x = 1 + √14, 1 - √14[/tex]. The corresponding value of y for each x can be calculated by substituting the value of x into the equation y = x - 2.
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from her purchased bags, rachel counted 130 red candies out of 520 total candies. using a 95% confidence interval for the population proportion, what are the lower and upper limit of the interval? answer choices are rounded to the thousandths place.
Hence, the population proportion's 95% confidence interval is (0.210, 0.290), rounded to the thousandths place.
what is proportionality ?A mathematical concept known as proportionality describes the relationship between two quantities that have different sizes but keep the same ratio or proportion. In other words, to preserve the same ratio, if one item changes, the other quantity must also change in proportion. For instance, if an automobile's speed and distance are proportionate, doubling the distance it travels will cause the car to go twice as quickly while retaining the same speed-to-distance ratio. Equations or ratios in mathematics are frequently used to express proportionality.
given
We can use the following formula to determine the lower and upper bounds of the 95% confidence interval for the population proportion:
Lower limit: sqrt((p * q) / n) * p - z
Upper limit: sqrt((p * q) / n) = p + z
With q = 1 - p, z is the z-score corresponding to the level of confidence, and p is the sample proportion.
Here, p = 130/520 = 0.25, q = 1 - p = 0.75, n = 520, and the z-score is 1.96 at a 95% confidence level (from the standard normal distribution).
Lower limit: 0.210 (0.25" * 0.75") - 1.96 * sqrt(0.25" * 0.75")
The maximum is equal to 0.25 + 1.96 * sqrt((0.25 * 0.75) / 520) = 0.290.
Hence, the population proportion's 95% confidence interval is (0.210, 0.290), rounded to the thousandths place.
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The distance from Elena's chin to the top of her head is 150
mm in an image. For a U.S. passport photo, this
measurement needs to be between 25 mm and 35 mm.
The height of the image after being scaled down by 80% three times is 76.8mm, which is not within the required range for a U.S. passport photo.
What is scaling?Scaling is the process of increasing or decreasing the size of a picture by dividing or multiplying its dimensions. An picture is expanded when it is scaled up, and its size is decreased when it is scaled down. An picture is affected by scaling when its size and, consequently, appearance, are altered. An picture may become pixelated or fuzzy if it is scaled up or down excessively, and information may be lost if it is scaled down too much. The aspect ratio of an image—the proportion of its width to its height—can also be impacted by scaling. The picture could look stretched or squished if the aspect ratio is modified.
Given that the image is 150 mm in height.
Thus, 80% of the image is:
150mm x 0.8 = 120mm
The scaling is performed 3 times, thus:
120mm x 0.8 = 96mm
96mm x 0.8 = 76.8mm
Hence, the height of the image after being scaled down by 80% three times is 76.8mm, which is within the required range for a U.S. passport photo.
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The complete question is:
Question A store gives away gift bags during a sale. Of these gift bags, 50% are green, 20% are yellow, and 30% are blue. The average number of items in each green bag is 8. The average number of items in each yellow bag is 5. The average number of items in each blue bag is 8. What is the average number of items in all the gift bags? Enter your answer as a decimal in the box.
The average number of items in all the gift bags is 7.4.
What is average?Average, also known as mean, is a numerical value that represents the central or typical value in a set of numbers. It is calculated by adding up all the numbers in a set and dividing the sum by the total number of values in the set. The average is a useful tool for summarizing a large amount of data into a single value that can be easily understood and compared to other values.
In the given question,
We can use the weighted average formula to find the average number of items in all the gift bags:
Average number of items = (proportion of green bags x average items in green bags) + (proportion of yellow bags x average items in yellow bags) + (proportion of blue bags x average items in blue bags)
Proportion of green bags = 50% = 0.5
Proportion of yellow bags = 20% = 0.2
Proportion of blue bags = 30% = 0.3
Average items in green bags = 8
Average items in yellow bags = 5
Average items in blue bags = 8
Substituting the values into the formula, we get:
Average number of items = (0.5 x 8) + (0.2 x 5) + (0.3 x 8)
Average number of items = 4 + 1 + 2.4
Average number of items = 7.4
Therefore, the average number of items in all the gift bags is 7.4
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Evaluate the following expression. You should do this problem without a calculator. e^In 5
a. 1
b. 5
c. 10
d. 0
The value of [tex]e^{In 5}[/tex] is equal to 5 which of option B. According to the property of logs and logarithm rules the given equation is done.
The natural log, or log to the base e, is denoted by ln. ln can also be written as [tex]log_{e}[/tex].
So, we can write the given expression as:
[tex]e^{log_{e}^(5) }[/tex]
The property of logs is:
[tex]a^{log_{a}^(x) } = x[/tex]
This means that if the number an is raised to a log whose base is the same as the number a, the answer will be equal to the log's argument, which is x.
The number e and the base of log are the same in the given case. As a result, the answer to the expression will be the log argument, which is 5.
Therefore, the value of [tex]e^{log_{e}^(5) }[/tex] = [tex]e^{In 5}[/tex] = 5. Correct option is option B.
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A 95 percent confidence interval for the mean time, in minutes, for a volunteer fire company to respond to emergency incidents is determined to be (2.8. 12.3). Which of the following is the best interpretation of the interval? Five percent of the time, the time for response is less than 2.8 minutes or greater than 12.3 minutes. B The probability is 0.95 that a randomly selected time for response will be between 28 minutes and 12.3 minutes Ninety-five percent of the time the mean time for response is between 2.8 minutes and 12.3 minutes. (D) We are 95% confident that the mean time for response is between 2.8 minutes and 12.3 minutes We are 95% confident that a randomly selected time for response will be between 2.8 minutes and 12.3 minutes.
The best interpretation of the interval is: We are 95% confident that the mean time for response is between 2.8 minutes and 12.3 minutes. Option D is correct
A confidence interval is a measure of how accurately an estimate (such as the sample average) corresponds to the actual population parameter. It is a range of values that the researcher believes is very likely to include the actual value of the population parameter.
Here, a 95 percent confidence interval for the mean time, in minutes, for a volunteer fire company to respond to emergency incidents is determined to be (2.8. 12.3). Thus, we can say that we are 95% confident that the mean time for response is between 2.8 minutes and 12.3 minutes. Therefore, option D is correct.
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Find the linear measure of arc KML on OO, where line segment KM is a diameter, OM=36, and angle KOL-145. Use 3. 14 for pie and estimate your answer to two decimal places
The linear measure of arc KML on OO is approximately 3.33 units, rounded to two decimal places.
Since KM is a diameter, angle KOM is a right angle. Therefore, angle KOL is a straight angle, which means that angle MOL is 180 - 145 = 35 degrees.
Now, we can use the fact that the measure of an arc is proportional to the measure of the angle it subtends. In particular, if the measure of an angle in degrees is θ and the radius of the circle is r, then the length of the arc it subtends is given by:
length of arc = (θ/360) * 2πr
In this case, the radius of the circle is half of the diameter KM, which is 36/2 = 18. So we have:
length of arc KML = (35/360) * 2 * 3.14 * 18
≈ 3.33
Therefore, the linear measure of arc KML on OO is approximately 3.33 units, rounded to two decimal places.
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You usually buy the same small bottle of shampoo.
There is a larger, 6.7
-ounce bottle that says it gives you 25%
more free.
What is the size in ounces of the original smaller bottle of shampoo?
Round your answer to the nearest tenth.
Answer:
If the larger bottle of shampoo gives 25% more for the same price, then it must contain 1.25 times the amount of shampoo in the smaller bottle. Let's represent the size of the smaller bottle as x ounces.
Thus, we can set up the following equation:
x * 1.25 = 6.7
Solving for x, we get:
x = 6.7 / 1.25
x ≈ 5.36
Therefore, the size of the original smaller bottle of shampoo is approximately 5.4 ounces (rounded to the nearest tenth).
determine the percentage of children who experience relief for less than four hours if the relief time follows a lognormal distribution.
Around 0.13% or 0.0013 of children find relief for less than four hours.
The percentage of children who experience relief for less than four hours if the relief time follows a lognormal distribution is determined as follows:
Step 1: Define the parameters of the problem. Assume that relief times are normally distributed with a mean of μ = 5.5 hours and a standard deviation of σ = 0.5 hours. We want to find the percentage of children who experience relief for less than four hours.
Step 2: Convert the normal distribution to the standard normal distribution using the formula: z = (x - μ) / σwhere x is the relief time in hours.
Step 3: Find the z-score corresponding to the value of x = 4:z = (4 - 5.5) / 0.5 = -3
Step 4: Use a standard normal distribution table to find the percentage of the area under the curve to the left of z = -3. This is equivalent to the percentage of children who experience relief for less than four hours.
Using the standard normal distribution table or calculator, we get that the percentage of children who experience relief for less than four hours is approximately 0.13% or 0.0013.
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There were some people on a train.
18 people get off the train at the first stop and 21 people get on the train.
Now there are 65 people on the train.
How many people were on the train to begin with?
Answer:
There were 62 people on the train to begin with.
Step-by-step explanation:
Firstly,i I subtracted 21 with 18 so i got 3.
It means that the train got 3 more people from the start.
Then i subtracted 65 with 3.
And so i got 62.
Order the angles from greatest to least
The side opposite to angle Y is the longest, and angle Y is the largest angle in triangle XYZ. So, the angles can be ordered from greatest to least as follows:
angle Y > angle Z > angle X.
What is triangle ?
A triangle is a three-sided polygon, or a closed two-dimensional shape with three straight sides and three angles. The sum of the angles in a triangle always adds up to 180 degrees. The sides of a triangle can be of different lengths, and the angles can be acute (less than 90 degrees), right (equal to 90 degrees), or obtuse (greater than 90 degrees).
To order the angles from greatest to least in triangle XYZ, we need to determine which side is the longest. By the Law of Cosines, we know that:
[tex]c^2 = a^2 + b^2 - 2ab*cos(C)[/tex]
where c is the side opposite to angle C, and a and b are the other two sides.
So, let's calculate [tex]c^2[/tex] for each angle:
For angle X: [tex]c^2 = 25^2 + 27^2 - 2(25)(27)*cos(X)[/tex] ≈ 173.65
For angle Y: [tex]c^2 = 24^2 + 27^2 - 2(24)(27)*cos(Y)[/tex] ≈ 267.43
For angle Z: [tex]c^2 = 24^2 + 25^2 - 2(24)(25)*cos(Z)[/tex] ≈ 121.97
Therefore, the side opposite to angle Y is the longest, and angle Y is the largest angle in triangle XYZ. So, the angles can be ordered from greatest to least as follows:
angle Y > angle Z > angle X
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Rewrite the following without an exponent.
(5/7)-1
The expression (5/7)^-1 can be written without an exponent as 8/5.
How can the exponent be written?Exponents have a number of important properties, such as the product rule (a^m × a^n = a^(m+n)) and the power rule ((a^m)^n = a^(m*n)). They are used in a wide range of mathematical contexts, including algebra, calculus, and geometry.
Given that (5/8)^-1, then we can deduced that the negative exponent is the samething as putting it in the denominator, which can be exprtessed as;
=[1/ (5/8)]
=[1 ÷ (5/8)]
[1 * 8/5]
=8/5
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Let triangle ABC be similar to DEF. Find the missing side EF.
The length of the side EF is equal to 18 units since the triangle DEF and triangle ABC are similar and DEF is bigger than ABC in the margin of 3 times.
Given, two triangles ABC and DEF.
The length of AB = 8 units
The length of its concurrent side DE = 24 units
Also given that the length of BC = 6 units
Here we can see that:
As both triangles are similar, their corresponding sides are in proportion.
This means that:
[tex]\frac{BC}{EF} = \frac{AE}{DE} =\frac{AC}{DF}[/tex]
Length of AB * 3 = Length of DE
Now the length of the side EF will be 3 times more than the side BC.
Length of EF = Length of BC * 3
Length of EF = 6 * 3
Length of EF = 18 units.
Therefore, the length of the side EF is equal to 18 units.
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There are 14 muffins in a basket Tina put some on a plane now there are six in the basket. How many muffins does Tina put on the plate?
Answer:
Step-by-step explanation:
All you have to do is subtract 6 from 14. The answer is 8. If the question is something like this one, always take the remainder and subtract it from how many you had in the beginning to get the answer.
Good luck
Peyton
What is the lcd of 2/5,1/2, and 3/4
The LCD of 2/5, 1/2, and 3/4 is equal to 20.
What is LCD?In Mathematics, LCD is an abbreviation for least common denominator or lowest common denominator and it can be defined as the smallest number that can act as a common denominator for a given set of fractions.
Next, we would determine the factors of the denominators for the given fraction 5, 2, and 4 as follows;
5 = 5 × 1
2 = 2 × 1
4 = 2 × 2 × 1
Therefore, the least common denominator (LCD) would be calculated as follows:
Least common denominator (LCD) = 5 × 2 × 2 × 1
Least common denominator (LCD) = 20.
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i rlly dont understand this but i need the answer asap
Answer: 163.36 in
Step-by-step explanation: Using the formula C=2πr you can plug in the radius and get your answer.
C=2 x pi x 26
C = 163.362817987
round as needed
Answer: 163.36
Im pretty sure all you have to do is use the formula
C=2πr
Step-by-step explanation:
C=2π(26)
163.36
What is the base, rate of change (incr/decr), and is it growth or decay
Y=3000(0.72)^x
The key features of the function are Base = 0.72, Rate = decrement and it decays
identifying the key features of the functionGiven that
y = 3000 * (0.72)ˣ
The given equation is in the form of exponential decay:
Base: The base of the exponential function is the constant term that is being raised to a power. In this case, the base is 0.72.
Rate of change: The rate of change is the factor by which the function is being multiplied or divided as the input variable increases.
Since the base is less than 1, the function is decreasing as x increases. The rate of decrease is given by the base, which is 0.72.
Growth or decay: As the base is less than 1, the function is decreasing, which means it is a decay function.
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What is the answer to
(P-q) (3)
Answer: 3P-3q
Step-by-step explanation:
1. Rearrange the terms so that the constants are on the left
(P-q) x 3 ( Is times 3)
3(P-q)
2. distribute
3(P-q)
3P-3q
3.Solution
3P-3q