In response to the stated question, we may state that Hence the slope equation of the line passing through the points (4, 5) and (-1, -1) in the form Ax+By=C is: 6x - 5y = -1.
what is slope?Slope is just the curvature of a bend or line in mathematics. It is a measure of the manner in which the y-value of something like a function varies because when x-value changes. The slope of a line is commonly symbolized by the letter m and may be computed as follows: m = (y2 - y1) / (x2 - x1) (x1, y1) and (x2, y2) are any 2 options on the line. A bridge's slope might be negative, negative, zero, or unknown. A positive slope indicates that the line ascends to left to right, whereas a slope indicates that the line drops from left to right.
We must use the point-slope form of the equation of a line to obtain the equation of a line of the form Ax+By=C that goes through two points:
y - y1 = m(x - x1) (x - x1)
where (x1, y1) is the location of one of the points and m is the line's slope.
Then, we must determine the slope of the line.
[tex]m = (y2 - y1) / (x2 - x1) (x2 - x1)\\where (4, 5) = (x1, y1) and (x2, y2) = (-1, -1)m = (-1 - 5) / (-1 - 4) = -6 / (-5) = 6/5\\y - y1 = m(x - x1) (x - x1)\\y - 5 = (6/5)(x - 4) (x - 4)\\5y - 25 = 6x - 24\\6x - 5y = -1\\[/tex]
Hence the equation of the line passing through the points (4, 5) and (-1, -1) in the form Ax+By=C is: 6x - 5y = -1.
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Help with math problems
The inequality can be solved to get 2 > x, and the graph on the number line can be seen in the image at the end.
How to solve the inequality?Here we have an inequality and we want to sole it, to do so, we just need to isolate the variable in the inequality.
Here we have:
10 > 5x
To isolate the variable we can divide both sides of the inequality by 5, then we will get:
10/5 > 5x/5
2 > x
So x is the set of all values smaller than 2.
That is the inequality solved, to graph this, drawn an open circle at x = 2 and a line that goes to the left. The graph is the one you can see in the image below.
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Find the value of X!!
The angle made by one chord and tangent of the circle is 32.5 degrees.
What is the Alternate Segment Theorem?
The Alternate Segment Theorem is a theorem in geometry that relates the angles formed by a line that is tangent to a circle and a chord of that circle. The theorem states that the angle formed by a tangent and a chord of a circle is equal to the angle that is subtended by the chord in the opposite segment of the circle
In a circle, the angle formed by a chord and a tangent that intersect at a point on the circle is equal to half the measure of the arc intercepted by the chord.
Therefore, if the arc intercepted by the chord is 65 degrees, then the angle formed by the chord and the tangent is half of 65 degrees, which is:
65 degrees / 2 = 32.5 degrees
So, the angle X made by the chord and the tangent is 32.5 degrees.
Therefore, the angle made by one chord and tangent of the circle is 32.5 degrees.
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[tex]x^{0}[/tex] has a value of [tex]27.5[/tex] degrees.
What are types and value?Values are the benchmarks or ideals by which we judge the acts, traits, possessions, or circumstances of others. Values that are embraced by many include those of beauty, honesty, fairness, harmony, and charity. When considering values, it might be helpful to categorise them into one of three categories: Personal values are those that an individual upholds.
What are the two major categories of value?Values come in two varieties. They serve as either terminal or auxiliary values for Rokeach. Terminal values always are end-states whereas qualities are always forms of conduct. Individuals think that acting in line with cognitive factors and reaching terminal values are always related.
We find the value of [tex]x^{0}[/tex]
[tex]Angle P = 1/2 (mAC-AB)[/tex]
[tex]x^{0}=\frac{1}{2} (120^{0}- 65^{0} )[/tex]
[tex]x^{0} =\frac{1}{2}*55^{0}[/tex]
Therefore, [tex]x^{0}= 27.5^{0}[/tex]
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A wire 2.5 meters long was cut in a ratio of 1:4, find the measure of the longer part of the wire after cutting?
The wire can be divided into five equal parts, where one portion is one-fifth of the total length and the other four parts are four-fifths of the total length. the measure of the longer part of the wire after cutting is 2 meters.
What is the measure of the longer part of the wire?If the wire was cut in a ratio of 1:4, then the total length of the wire can be divided into 5 parts, where one part is 1/5 of the total length, and four parts are 4/5 of the total length. Let's call the length of one part "x".
So, the total length of the wire is:
[tex]5x = 2.5[/tex] meters
To find the length of the longer part of the wire, we need to find how many parts are in the longer portion. Since the wire was cut in a 1:4 ratio, the longer portion has four parts.
Therefore, the length of the longer part of the wire is:
[tex]4x = 4/5 \times 2.5 meters = 2 meters[/tex]
Therefore, the measure of the longer part of the wire after cutting is 2 meters.
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11) m/EFG=132°, m/CFG=x+111,
and m/EFC=x+23. Find mLEFC.
A ladder leans against the side of a house. The angle of elevation of the ladder is 69 when the bottom of the ladder is 8ft from the side of the house. How high is the top of the ladder from the ground? Round your answer to the nearest tenth.
Answer:
20.8
Step-by-step explanation:
Let h be the height of the ladder. We know that the distance BC is 8 ft, and the angle of elevation BAC is 69 degrees. Therefore, we have:
tan(69) = h/8
Multiplying both sides by 8, we get:
8*tan(69) = h
Using a calculator, we get:
h ≈ 20.8 ft
Therefore, the height of the top of the ladder from the ground is approximately 20.8 feet.
i have an upcoming exam
I need help with inequalities
can someone give me problems then put the answers below?
Thanks
Please at least 5
Reward- Brainliest and 25 Tokens
Problems:
Solve for x: 2x - 5 > 9x + 2
Solve for x: 3x + 2 < 7x - 5
Solve for x: 4x + 3 < 2x - 1
Solve for x: -2x - 4 > -8x + 3
Solve for x: 5x + 1 < 2x + 7
Answers:
x < -0.7
x > 1.75
x < -1
x < 0.875
x < 1.2
Answer:
Example 1
Solve 3x − 5 ≤ 3 − x.
Solution
We start by adding both sides of the inequality by 5
3x – 5 + 5 ≤ 3 + 5 − x
3x ≤ 8 – x
Then add both sides by x.
3x + x ≤ 8 – x + x
4x ≤ 8
Finally, divide both sides of the inequality by 4 to get;
x ≤ 2
Example 2
Calculate the range of values of y, which satisfies the inequality: y − 4 < 2y + 5.
Solution
Add both sides of the inequality by 4.
y – 4 + 4 < 2y + 5 + 4
y < 2y + 9
Subtract both sides by 2y.
y – 2y < 2y – 2y + 9
Y < 9 Multiply both sides of the inequality by −1 and change the inequality symbol’s direction. y > − 9
Solving linear inequalities with subtraction
Let’s see a few examples below to understand this concept.
Example 3
Solve x + 8 > 5.
Solution
Isolate the variable x by subtracting 8 from both sides of the inequality.
x + 8 – 8 > 5 – 8 => x > −3
Therefore, x > −3.
Example 4
Solve 5x + 10 > 3x + 24.
Solution
Subtract 10 from both sides of the inequality.
5x + 10 – 10 > 3x + 24 – 10
5x > 3x + 14.
Now we subtract both sides of the inequality by 3x.
5x – 3x > 3x – 3x + 14
2x > 14
x > 7
Solving linear inequalities with multiplication
Let’s see a few examples below to understand this concept.
Example 5
Solve x/4 > 5
Solution:
Multiply both sides of an inequality by the denominator of the fraction
4(x/4) > 5 x 4
x > 20
Step-by-step explanation:
Hope this helps :3
A seed company planted a floral mosaic of a national flag. The perimeter of the flag is 2,120 ft Determine the flag's width and length if the length is 400 ft greater than the width.
The flag's width is and the length is what?
PLEASE HURRY
Answer:
Step-by-step explanation:
Let's assume that the width of the flag is "w" ft.
According to the problem, the length of the flag is 400 ft greater than the width, which means it can be expressed as:
length = w + 400
Now, we know that the perimeter of the flag is 2,120ft. The perimeter of a rectangle is given by:
perimeter = 2(length + width)
Substituting the values, we get:
2120 = 2[(w+400) + w]
2120 = 2[2w + 400]
2120 = 4w + 800
4w = 1320
w = 330
Hence, the width of the flag is 330ft.
From our equation for the length, we have:
length = w + 400
length = 330 + 400
length = 730
Therefore, the length of the flag is 730ft.
Determine the perimeter of the composite figure.
The perimeter of the figure is approximately 63.6 meters, since the lengths of all the sides add up to the figure's perimeter.
What is perimeter?Perimeter is the total length of the boundary of a closed 2-dimensional shape. In other words, it is the distance around the edge of a shape. The perimeter is usually measured in units such as meters, centimeters, feet, or inches depending on the measurement system used. The perimeter can be calculated by adding up the lengths of all the sides of the shape.
Since opposite sides of a parallelogram are equal in length, the length of the straight side of the first parallelogram is:
Length of first parallelogram = 9m
Similarly, the length of the straight side of the second parallelogram is:
Length of second parallelogram = 11m
Now, let's find the length of the straight side of the semicircle segment. We are given that the other side of each parallelogram gets half of the diameter, which is 17m. Therefore, the length of the straight side of the semicircle segment is:
Length of semicircle segment = 17m / 2 = 8.5m
The lengths of all the sides add up to the figure's perimeter. Let's use P to represent the perimeter. Then:
P = 2 (parallelogram length) + semicircle length
When we replace the values we discovered earlier, we obtain:
P = 2(9m + 11m) + π(17m)/2
= 38m + 8.5πm
≈ 63.6m (using π ≈ 3.14)
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Express the trig ratios as fractions in simplest terms.
cOS K =
sin L=
cos K and sin L
Therefore, cos(K) = √(17)/9, sin(L) = 8/9, and cos(K) and sin(L) together are (√(17)/9, 8/9) are trigonometric ratios as fractions in simplest terms.
Trigonometric Ratios of Particular Angles: What Are They?It is possible to calculate trigonometric ratios for various orientations. However, we memories the trigonometric ratios of a few particular angles, such as 0°, 30°, 45°, 60°, and 90°, to make computations easier. The numbers of the ratios at these angles can be found in the trigonometric ratios table.
The Pythagorean formula can be applied to the illustration to determine the length of the third side:
c²= a²+ b²
c²= 8² + √(17)²
c²= 64 + 17
c² = 81
c = 9
We can now calculate the trigonometry ratios of angles K and L:
cos(K) = adjacent/hypotenuse = √(17)/9
sin(L) = opposite/hypotenuse = 8/9
Using the same hypotenuse number of 9, we can calculate both cos(K) and sin(L) as follows:
cos(K) = adjacent/hypotenuse = √(17)/9
sin(L) = opposite/hypotenuse = 8/9
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bob had 2 apples and he ate 1 how many does he have now?
Answer: He has one left
Step-by-step explanation: 2-1=1
All nine transactions for Ralston Sports Co. for September, the first month of operations, are recorded in the following T accounts:
Cash
(1)
(7)
(9)
(4)
(8)
(3)
(2)
25,000 (3)
11,900 (5)
9,700 (6)
(8)
James Ralston, Capital
(1)
Accounts Receivable
9,900 (9)
James Ralston, Drawing
7,000
Supplies
12,500
Fees Earned
(4)
(7)
Equipment
9,500
12,500
7,600
10,500
7,000
25,000
9,700
9,900
11,900
Answer:
Step-by-step explanation:
Cash
(1)
(7)
(9)
(4)
(8)
(3)
(2)
25,000 (3)
11,900 (5)
9,700 (6)
(8)
James Ralston, Capital
(1)
Accounts Receivable
9,900 (9)
James Ralston, Drawing
7,000
Supplies
12,500
Fees Earned
(4)
16 Triangle ABC is translated to triangle A'B'C' by
the following motion rule.
(x, y)(x+2y-5)
-8 -6
G
A. (4,-4)
B. (2,-5)
C. (0.6)
D. (-2.5)
N
8
6
B
-2
S
-6
-8
2
What will be the coordinates of A'?
6 8
Answer:
To find the coordinates of A' after the translation, we need to apply the motion rule to the coordinates of A:
(x, y) → (x + 2y - 5, y - 6)
Substituting the coordinates of point A, which is (4, -4), into this motion rule, we get:
A' = (4 + 2(-4) - 5, -4 - 6) = (-3, -10)
Therefore, the coordinates of A' after the translation are (-3, -10).
Can someone help me please?
Answer: yes, no, yes, no
Step-by-step explanation:
If the diameter of a circle is
30
30 centimeters, what is the radius of the circle?
Answer:
15 centimeters
Step-by-step explanation:
radius is half of the circles diameter
The bookstore has 27 chapter books, 9 comic books, and 30 picture books. The shop sold
one-third of the books. How many books were sold?
Answer:
22
Step-by-step explanation:
first you would add all books from the book store to get 66
Then you would divide that by 3 to get
66÷3=22
Use the information given below to find tan(a + B)
cos a = 3/5, with a in quadrant IV
tan B = 4/3, with B in quadrant I I I
Give the exact answer, not a decimal approximation.
tan(a + B) = ?
let's bear in mind that on the III Quadrant, sine and cosine are both negative, whilst on the IV Quadrant, sine is negative and cosine is positive, that said
[tex]\cos(\alpha )=\cfrac{\stackrel{adjacent}{3}}{\underset{hypotenuse}{5}}\hspace{5em}\textit{let's find the \underline{opposite side}} \\\\\\ \begin{array}{llll} \textit{using the pythagorean theorem} \\\\ a^2+o^2=c^2\implies o=\sqrt{c^2 - a^2} \end{array} \qquad \begin{cases} c=\stackrel{hypotenuse}{5}\\ a=\stackrel{adjacent}{3}\\ o=opposite \end{cases} \\\\\\ o=\pm \sqrt{ 5^2 - 3^2} \implies o=\pm \sqrt{ 16 }\implies o=\pm 4\implies \stackrel{IV~Quadrant }{o=-4} \\\\[-0.35em] ~\dotfill[/tex]
[tex]\tan(\beta )=\cfrac{\stackrel{opposite}{4}}{\underset{adjacent}{3}}\implies \tan(\beta )=\cfrac{\stackrel{opposite}{-4}}{\underset{adjacent}{-3}} \\\\[-0.35em] ~\dotfill\\\\ \tan(\alpha + \beta) = \cfrac{\tan(\alpha)+ \tan(\beta)}{1- \tan(\alpha)\tan(\beta)} \\\\\\ \tan(\alpha + \beta)\implies \cfrac{ ~~\frac{-4}{3}~~ + ~~\frac{-4}{-3} ~~ }{1-\left( \frac{-4}{3} \right)\left( \frac{-4}{-3} \right)}\implies \cfrac{0}{1-\left( \frac{-4}{3} \right)\left( \frac{-4}{-3} \right)}\implies \text{\LARGE 0}[/tex]
PLEAS HELP!
Which best describes why it is helpful to know the slant height of a pyramid to find its surface area?
Responses
1)Knowing the slant height helps because it represents the height of the triangle that makes up the base. So, the slant height helps you to find the area of the base.
2)Knowing the slant height helps because it represents the height of the rectangle that makes up each lateral face. So, the slant height helps you to find the area of each lateral face.
3)Knowing the slant height helps because it represents the height of the triangle that makes up two of the lateral faces. So, the slant height helps you to find the area of those two lateral faces.
4)Knowing the slant height helps because it represents the height of the triangle that makes up each lateral face. So, the slant height helps you to find the area of each lateral face.
Therefore, knowing the slant height is important in calculating the lateral area of the pyramid, which is one component of the total surface area.
by the question.
Option 2 is the correct response. Knowing the slant height is helpful because it represents the height of the rectangle that makes up each lateral face of the pyramid. The lateral faces are made up of triangles and rectangles, and the slant height is used to find the height of these rectangles.
Knowing the slant height helps because it represents the height of the rectangle that makes up each lateral face. So, the slant height helps you to find the area of each lateral face. The formula for the lateral area of a pyramid involves the slant height, the perimeter of the base, and the apothem (the distance from the center of the base to the midpoint of a side). Once you know the lateral area, you can add it to the area of the base to find the total surface area of the pyramid.
The slant height of a pyramid is the height of each triangular lateral face, which is an essential component in calculating the lateral surface area of a pyramid. Knowing the slant height is used in the formula for finding the lateral area of a pyramid, which is the sum of the areas of all the triangular lateral faces. Additionally, the base area of the pyramid is also needed to find the total surface area of the pyramid. So, knowing the slant h
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Match each expression to its equivalent expression.
Answer: top two goes together, middle left goes to bottom right, bottom left goes to middle right
Step-by-step explanation:
Substitute x for an easy number like 2 and solve.
x - 2/3 - 1/2x = 1/2x - 2/3
x - 1/2 - 3/4x = 1/4x- 1/2
1/3x - 3/4 - 2/3x = -1/3x - 3/4
Watch help video
Given circle E with diameter CD and radius EA. AB is tangent to E at A. If
EC = 3 and EA = 3, solve for AC. Round your answer to the nearest tenth if
necessary. If the answer cannot be determined, click "Cannot be determined."
C
A
B
The circle E with diameter CD and radius EA having the length of AC is approximately 4.2 units.
What is Pythagoras' Theorem?
In a right-angled triangle, the square of the hypotenuse side equals the sum of the squares of the other two sides.
Since EA is a radius of circle E, and AB is tangent to E at A, we know that AB is perpendicular to EA. Thus, triangle EAB is a right triangle.
Let x be the length of AC. Then, by the Pythagorean Theorem in triangle EAC, we have:
[tex]AC^{2} = EA^{2} +EC^{2}[/tex]
[tex]AC^{2} = 3^{2} + 3^{2}[/tex]
[tex]AC^{2} = 18[/tex]
AC ≈ 4.2 (rounded to the nearest tenth)
Therefore, the length of AC is approximately 4.2 units.
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Im stuck on these questions I need help
Answer:
Step-by-step explanation:
modal weight: the weight that appear most often
4.5 kg appears 3 times
6-sided polygon: even though it is an irregular polygon, the interior angles still add up to (6 - 2)180 = 720
therefore, angle f = 720 - 576 = 144 (the sum of a+b+c+d+e is very blurry in the image, it looks like 576--please double check that!)
modal score: read this right off the graph. The score with the highest frequency is the modal score: 14 (meaning, 9 contestants got this score)
if the mean of a symmetric distribution is 130 which of these values could be the median of the distribution
in a symmetric distribution, the value that could be the median of the distribution must be equal to the mean.
In probability and statistics, the mean and median are two measures of central tendency that are commonly used to describe a data set. The mean, also known as the arithmetic mean or average, is calculated by summing up all the values in the data set and dividing by the total number of values. The median, on the other hand, is the middle value of a data set when the values are arranged in order from lowest to highest.
For a symmetric distribution, the mean and median are the same, because the data values on one side of the mean balance out the values on the other side. In other words, if the distribution is symmetric, then the data values are evenly distributed around the mean.
In this case, if the mean of a symmetric distribution is 130, then the median must also be 130. This is because the median is the middle value of the data set, and in a symmetric distribution, the middle value is the same as the mean.
To illustrate this, consider a simple example of a symmetric distribution with the following values: 125, 130, 135, 140. The mean of this distribution is (125 + 130 + 135 + 140) / 4 = 132.5. However, the median is the middle value of the data set, which is 130. Since the distribution is symmetric, the middle value is the same as the mean.
Therefore, in a symmetric distribution, the value that could be the median of the distribution must be equal to the mean.
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Complete question:- If the mean of a symmetrical distribution is 130, which of these values could be the median of the distribution?
I have a barn that is a regular hexagon, as shown. Each side of the barn is 100 feet long. I tether my burro to point A with a 150 foot rope. Find the area of the region in which my burro can graze. Round your answer to nearest foot squared.
The area of the region in which the burro can graze will be 833 pi square feet.
What is the value of the area?Each interior vertex angle of a regular hexagon is (n - 2)·180°/n = (6 - 2)·180°o/6 = 120°
I'll break up the area into three sections.
There is one major section, going 150' along one side in a circular arc to 150' along the adjacent side.
Since the interior angle is 120°, the exterior angle will be 240°.
The area of this section will be: (240°/360°)·pi·radius2 = (2/3)·pi·1502 = 15,000 pi
Then, on each end, around the corner of the barn, the goat can go in a circular arc with radius = 50'.
This angle will be 60°, or one-sixth or a circle.
The area of each section will be (1/6)·pi·502 = 416 2/3 pi
Total area: 15,000 pi + 416 2/3 pi + 416 2/3 pi = 833 1/3 pi square feet.
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Given the following exponential function, identify whether the change represents
growth or decay, and determine the percentage rate of increase or decrease.
Y=38(1.09)^x
The exponential equation represents a growth, and the rate of increase is 9%.
Is it a growth or a decay?The general exponential equation is written as:
y = A*(1 + r)^x
Where A is the intial value, and r is the rate of growth or decay, depending of the sign of it (positive is growth, negative is decay).
Here we have:
y = 38*(1.09)^x
We can rewrite this as:
y = 38*(1 + 0.09)^x
So we can see that r is positive, thus, we have a growth, and the percentage rate of increase is 100% times r, or:
100%*0.09 = 9%
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A carpenter attaches a brace to a rectangular picture frame. If the dimensions of the picture frame are 30 inches by 40 inches, what is the length of the
brace?
The brace measures 50 inches in length.
What is Pythagoras's Theorem?The Pythagorean Theorem states that the squares on the hypotenuse of a right triangle, which is the side opposite the right angle, equals the sum of the squares on the legs of the triangle, a2 + b2 = c2.
The other two sides of the picture frame are its length and width. We thus have:
Length of the hypotenuse (brace)² = Length² of the picture frame + Width² of the picture frame
Let's enter the picture frame's specified dimensions:
Length of the brace² = 30² + 40²
Length of the brace² = 900 + 1600
Length of the brace² = 2500
Taking the square root of both sides, we get:
Length of the brace = √(2500)
Length of the brace = 50
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The average overseas trip cost 2708 per visitor. If we assume a normal distribution with a standard deviation of 405 what is the probability that the cost for a randomly selected trip is more than 3000? If we elect a random sample of 30 overseas trips and find the mean of the sample, what is the probability that the mean is greater than 3000
Randomly selected trip: 24.5% chance > $3000. Sample mean of 30 trips: very small chance > $3000.
Utilizing z-score recipe:
z = (x - μ)/σ
where x is the worth we're keen on, μ is the mean, and σ is the standard deviation.For the primary inquiry:
z = (3000 - 2708)/405 = 0.69
Utilizing a standard typical circulation table or number cruncher, we can track down that the likelihood of getting a z-score more prominent than 0.69 is around 0.245. Consequently, the likelihood that the expense for a haphazardly chosen trip is more than 3000 is around 0.245 or 24.5%.
For the subsequent inquiry:
The example size (n) = 30, and the standard deviation (σ) = 405/sqrt(30) = 74.02 (approx.)
z = (3000 - 2708)/74.02 = 3.94
Utilizing a standard typical dissemination table or number cruncher, we can track down that the likelihood of getting a z-score more prominent than 3.94 is tiny, near 0. Consequently, the likelihood that the mean expense of an example of 30 abroad excursions is more noteworthy than 3000 is tiny.
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The probability that the mean is greater than 3000 is 24.5%
What is probability?A probability is a number that reflects the chance or likelihood that a particular event will occur.
Probabilities can be expressed as proportions that range from 0 to 1, and they can also be expressed as percentages ranging from 0% to 100%.
Given that, the average overseas trip cost 2708 per visitor, assuming a normal distribution with a standard deviation of 405 what is the probability that the cost for a randomly selected trip is more than 3000
z-score:
z = (x - μ)/σ
where μ is the mean, and σ is the standard deviation.
So,
z = (3000 - 2708)/405 = 0.69
Z-score 0.69 = 0.245.
Thus, the likelihood that the expense of the chosen trip is more than 3000 is around 0.245 or 24.5%.
The sample size (n) = 30, and the standard deviation (σ) = 405/√(30) = 74.02 (approx.)
z = (3000 - 2708)/74.02 = 3.94
z-score 3.94 = 0.
Thus, the likelihood that the mean expense of an example of 30 abroad excursions is more noteworthy than 3000 is tiny.
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I need help with my homework
The table that represents the function for a lawn being mowed more quickly than by Killian's rate is given as follows:
Second table.
How to obtain the average rate of change?The average rate of change of a function is given by the change in the output of the function divided by the change in the input of the function. Hence we must identify the change in the output, the change in the input, and then divide then to obtain the average rate of change.
Killian can cut grass at a rate of 1000 square feet each 10 minutes, hence his average rate of change is given as follows:
1000/10 = 100 square feet per minute.
For the second table, in 7 minutes, 1100 square feet of lawn is mowed, hence the rate is given as follows:
1100/7 = 157 square feet per minute.
It is more quickly than Killian's as the rate of change is greater.
More can be learned about the average rate of change of a function at brainly.com/question/11627203
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Let's say you took a sample of 445 voice-activated smart TVs. The mean rate at which these TVs need to be serviced or replaced is every 3.5 years, with a standard deviation of 0.8 years. Given a confidence level of 95%, what is the maximum error of estimate?
The maximum errοr οf estimate is 0.092 years οr apprοximateIy 1 mοnth.
What is Standard Deviatiοn?The standard deviatiοn is a measure οf the amοunt οf variatiοn οr dispersiοn οf a set οf vaIues frοm their mean οr average. It is caIcuIated as the square rοοt οf the variance.
Tο find the maximum errοr οf estimate, we need tο use the fοrmuIa:
Maximum errοr οf estimate = z * (standard deviatiοn / √(sampIe size))
where z is the z-scοre assοciated with the given cοnfidence IeveI, standard deviatiοn is the pοpuIatiοn standard deviatiοn (0.8 years), and sampIe size is the number οf TVs sampIed (445).
At a cοnfidence IeveI οf 95%, the z-scοre is 1.96.
Substituting the vaIues in the fοrmuIa, we get:
Maximum errοr οf estimate = 1.96 * (0.8 / √(445))
= 0.092 years (rοunded tο 3 decimaI pIaces)
Therefοre, the maximum errοr οf estimate is 0.092 years οr apprοximateIy 1 mοnth. This means that we can be 95% cοnfident that the true mean rate at which the TVs need tο be serviced οr repIaced is within 1 mοnth οf the sampIe mean οf 3.5 years.
To learn more about Standard Deviation from the given link
https://brainly.com/question/475676
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Please help me!!!
Suppose the proportion p of a school’s students who oppose a change to the school’s dress code is 73%. Nicole surveys a random sample of 56 students to find the percent of students who oppose the change. What are the values of p that she is likely to obtain?
A capital is invested, at simple interest, at the rate of 4% per month. How long, at least, should it be applied, so that it is possible to redeem triple the amount applied? * 1 point a) 15 months b) 30 months c) 35 months d) 50 months.
The amount of time needed for this capital to triple would be 50 months, the letter "d" being correct. We arrive at this result using simple interest.
Simple interestSimple interest is a type of financial calculation that is used to calculate the amount of interest on borrowed or invested capital for a given period of time.
In order to find the amount of time required for the principal to be equal to three times the redemption, we have to note that the amount will be equal to three times the principal, using this information in the formula. Calculating, we have:
M = C * (1 + i * t)
3C = C * (1 + 0.04t)
3 = 1 + 0.04t
0.04t = 3 - 1
0.04t = 2
t = 2/0.04
t = 50
100 Points!!! Algebra question, multiple choice. Only looking for an answer to #8. Find the maximum value of f(x,y)=3x+y for the feasible region. Photo attached. Thank you!
Answer:
+4
Step-by-step explanation:
F(x,y) = 3x+y and y <= -2x+ 4 sub in for 'y'
= 3x + (-2x+4)
= x + 4
If you look at the graph for y <= - 2x+4 ( see below)
you will see that the domain (x values ) can only go from 0 to 4 and the max value is +4 ( rememeber too that y is restricted to >= 0 as is x )