ASAP
A Ferris wheel at the local fair has a diameter of 52 meters. Which expression can be used to find its circumference, C, in meters
A. C= 26 x π
B. C= 52 x π
C. C= 2 x 52 x π
D. C= 26²π

And how did you get the answwr

Answer:

area is 90 and perimeter is 46

Step-by-step explanation:

the area for a rectangle is l * w, so 18*5 is 90, and the perimeter is 2l+2w, which is 46.

Answer:

Area 90

perimeter 46

Step-by-step explanation:

To find area, you multiply both sides.

to find perimeter, you add up all the sides. Make sure to double each number.

The correct equivalent interval notation for the inequality "a ≤ x < b" is [a, b). The inequality "a ≤ x < b" represents a range of values for x where x is greater than or equal to a but less than b.

To express this range in interval notation, we have several options:

A. (a, b): This notation represents an open interval, indicating that the values of x are greater than a and less than b. However, the inequality "a ≤ x < b" includes the possibility of x being equal to a, so this notation is not appropriate.

B. [a, b): This notation represents a closed-open interval, indicating that the values of x are greater than or equal to a and less than b. This matches the given inequality, so [a, b) is the correct interval notation for "a ≤ x < b".

C. [a, b]: This notation represents a closed interval, indicating that the values of x are greater than or equal to a and less than or equal to b. However, the inequality "a ≤ x < b" specifies that x must be strictly less than b, so this notation is not correct.

D. (a, b]: This notation represents an open-closed interval, indicating that the values of x are greater than a and less than or equal to b. Since the inequality "a ≤ x < b" does not include the possibility of x being equal to b, this notation is not accurate.

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Answer:

$1500

Step-by-step explanation:

90000x.05=4500

4500/12=375

375x4=1500

The answer is$1500 Interest he will earn in 4 months

Answer:

19

Step-by-step explanation:

115+10P=305

305-115=190

190/10=19

Answer:

y=mx+b

In the above linear equation, m is always the slope and b is always the y-intercept.

slope: 4/5

y-intercept: -1

Answer:

Slope: 4/5

Y-intercept: (0,-1)

Answer:

$30.47

Step-by-step explanation:

100%-15%=85%
85%=0.85
$35.85*0.85=30.47 (to 2d.p)
Hope this helps

The 94% confidence interval for the mean number of hours it takes for a student to meet the course objectives is approximately (63.81, 87.59).

To construct a confidence interval for the mean number of hours it takes for a student to meet the course objectives, we can use the following formula:

Confidence interval = (sample mean) ± (critical value) * (standard deviation / sqrt(sample size))

We have:

Sample size (n) = 45

Sample mean (xbar) = 75.7

Standard deviation (σ) = 55

Confidence level = 94%

To obtain the critical value corresponding to a 94% confidence level, we need to determine the z-value.

The z-value represents the number of standard deviations from the mean that will give us the desired level of confidence.

We can find the z-value using a standard normal distribution table or a calculator.

The critical value for a 94% confidence level corresponds to a z-value of 1.8808 (rounded to four decimal places).

Now, we can calculate the confidence interval:

Confidence interval = (75.7) ± (1.8808) * (55 / sqrt(45))

Confidence interval = 75.7 ± 11.89

The lower bound of the confidence interval is 75.7 - 11.89 = 63.81.

The upper bound of the confidence interval is 75.7 + 11.89 = 87.59.

Therefore, the 94% confidence interval is approximately (63.81, 87.59).

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Step-by-step explanation:

given,

BD = 7x - 10

BC = 4x - 29

CD = 5x - 9

a/q

BC + CD = BD

so, after inserting the values we got,

4x - 29 + x - 9 = 7x - 10

→ 5x - 38 = 7x - 10

→ 5x - 7x = - 10 + 38

→ 2x = 28

→ x = 28/2 = 14

→ x = 14

therefore value of x is 14

according to the obtained value,

BD = 7x - 10 → 7(14) - 10 = 98 - 10 = 88

BC = 4x - 29 → 4(14) - 29 → 56 - 29 = 27

CD = 5x - 9 → 5(14) - 9 → 70 - 9 = 61

hope this answer helps you dear....take care and may u have a great day ahead!

verifying,

BC + CD = BD

→ 61 + 27 = 88

→ L.H.S = 61 + 27 = 88

so,

LHS = RHS

Answer:

True

Step-by-step explanation:

Answer:

True, because if we multiply any number with zero the product will still be zero.

Answer:

x=9.3

Step-by-step explanation:

use SohCahToa

in this case u use cos

cos(41°)=7/x

x=7/cos(41)

x=9.275090953

x=9.3

Answer: He will have ½ pints of milk left

Step-by-step explanation: 1½ + 1½ =3

3½-3=½

Answer:

-0.3125

Step-by-step explanation:

5k^-4 when k = -2

~Substitute

5(-2)^-4

~Take the exponent

5(-0.0625)

~Multiply

-0.3125

Best of Luck

The 95% confidence interval for the population proportion in this problem is given as follows:

(0.467, 0.631).

This means that we are 95% confident that the population mean is between 0.467 and 0.631.

A confidence interval of proportions has the bounds given by the rule presented as follows:

\(\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}\)

In which the variables used to calculated these bounds are listed as follows:

The confidence level is of 95%, hence the critical value z is the value of Z that has a p-value of \(\frac{1+0.95}{2} = 0.975\), so the critical value is z = 1.96.

The parameters for this problem are given as follows:

\(n = 142, \pi = \frac{78}{142} = 0.549\)

The lower bound of the interval is given as follows:

\(0.549 - 1.96\sqrt{\frac{0.549(0.451)}{142}} = 0.467\)

The upper bound of the interval is given as follows:

\(0.549 + 1.96\sqrt{\frac{0.549(0.451)}{142}} = 0.631\)

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The percentage increase in the cost of the airline tickets is 38%.

Percentage is the fraction of a number out of hundred. The sign that is used to represent percentages is %. Percentage is a measure of frequency. In order to convert a value to a percentage, multiply the value by 100.

in order to determine the percentage increase, multiply the fraction of the change in price and the initial price by 100.

Percentage increase = (change in price / initial price)  100

Change in price = new price - initial price = $310 - $225 = $85

Initial price = $225

($85 / $225) x 100 = 38%

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Answer:

  (i)  x = 17 cm

  (ii) 360 cm²

  (iii) 14400 cm³

  (iv) 4000 cm²

Step-by-step explanation:

You want the slant side length, end area, volume, and total surface area of an isosceles trapezoidal prism with end bases 16 cm and 32 cm and end height 15 cm. The length of the prism is 40 cm.

The slant side of the base is the hypotenuse of a right triangle that has legs of 15 cm and (32 -16)/2 = 8 cm. You recognize these numbers as belonging to the {8, 15, 17} Pythagorean triple, so you know the slant side is 17 cm.

If you don't recognize that triple, you can figure the side length as ...

  x = √(15² +8²) = √(225 +64) = √289

  x = 17 . . . centimeters

The area of the end trapezoid is given by ...

  A = 1/2(b1 +b2)h = 1/2(32 +16)(15) = 360 . . . cm²

The area of the end surface is 360 cm².

The volume of the prism is given by ...

  V = Bh

where B is the area of the base, and h is the length between bases.

  V = (360 cm²)(40 cm) = 14400 cm³

The volume of the prism is 14400 cubic centimeters.

The total surface area is the sum of the areas of the two bases and the lateral area. The lateral area is the product of the perimeter of the base and the length of the prism.

  total area = 2 · base area + lateral area

  total area = 2 · 360 cm² + (32 + 17 + 16 + 17 cm)(40 cm)

  total area = 720 cm² + 3280 cm² = 4000 cm²

The total surface area of the prism is 4000 square centimeters.

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Answer:

Its D

Step-by-step explanation:

Just took the test and got a 96%

Answer:

d

Step-by-step explanation:

fart

The number of turns or bumps in the graph of the function\(f(x)=7x^3-14x+2\)  is 2.

A function is a process or a relation that associates each element 'a' of a non-empty set A , at least to a single element 'b' of another non-empty set B. A relation f from a set A (the domain of the function) to another set B (the co-domain of the function) is called a function in math.

f = {(a,b)| for all a ∈ A, b ∈ B}

Given,

\(f(x)=7x^3-14x+2\)

Answer has shown in the attached file.

Hence, The number of turns or bumps in the graph of the function\(f(x)=7x^3-14x+2\)  is 2.

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Answer:

34

Step-by-step explanation:

hope this helps :)

Answer:

34

Step-by-step explanation:

First, plug in numbers and then solve...

Answer:

50

Step-by-step explanation:

25x2=50

300-50=250

250/5=50

50 ribbons needed :) hope this helped

Answer:

150 ft

Explanation:

The number of feet of fencing needed should cover the entire perimeter of the rectangular garden.

Now the perimeter of the rectangle is

Hence, the 150 ft of fencing is required to enclose the rectangular garden,

Answer:

A square is defined as a quadrilateral with 4 sides of the same length and 4 right angles. To verify the lengths of the sides, you can use the distance formula. To find the angles, you can use the slopes of the line segments and make sure sides that form an angle have opposite reciprocal slopes.

Step-by-step explanation:

First, find the coordinates of each point. You're provided with the scale and you can just count, but to make it easier, you can label the axes.

A: (0,8)

B: (6,6)

C: (4,0)

D: (-2,2)

The distance formula is used to find the distance between any two points on the coordinate form. Here it is:

d=sqrt((y2-y1)^2 + (x2-x1)^2)

d=distance, and (x1, y1) and (x2, y2) are the points.

Find the length of each side. I'll demonstrate with two sides, AB and BC.

AB: (x1,y1)=(0,8) and (x2,y2)=(6,6)

d=sqrt((6-8)^2 + (6-0)^2)

 =sqrt((-2)^2 + 6^2)

 =sqrt(4+36)

 =sqrt(40)=2sqrt10

BC: (x1,y1)=(6,6) and (x2,y2)=(4,0)

d=sqrt((4-6)^2 + (0-6)^2)

 =sqrt((-2)^2 + (-6)^2)

 =sqrt(4+36)

 =sqrt(40)=2sqrt10

Do the same thing with sides CD and AD, you'll see that they both also have a length of 2sqrt10 inches. (You don't really have to simplify, I just like to.)

To verify if the sides are perpendicular, you need to find the slopes of the sides and make sure that the product of the slopes of each pair of sides that form a vertex is -1. In other words, each pair of sides that form a vertex have to have opposite reciprocal slopes. I'll demonstrate with 2 vertecies, A and B.

To find the slope, you have to use the formula m=(y2-y1)/(x2-x1). m is the slope, and again, (x1, y1) and (x2, y2) are the points you're plugging in.

To find the measure of angle A, you need to find the slopes of sides AD and AB. (These are the sides that meet to form the angle.)

AD: (x1,y1)=(0,8) and (x2,y2)=(-2,2)

m = (2 - 8)/(-2 - 0)

   = -6/-2

   = 3

AB: (x1,y1)=(0,8) and (x2,y2)=(6,6)

m = (6 - 8)/(6 - 0)

   = -2/6

   = -1/3

So AD has a slope of 3 and AB has a slope of -1/3. Now you need to make sure they have a product of -1.

-1/3 * 3 = -1

So yes, it works! As I mentioned before, you can also think of them as opposite reciprocals.

The reciprocal of 3 is 1/3. The opposite of 1/3 is -1/3. So yes, the sides are perpendicular.

Let's do it again with angle B. We have to find the slope of BC now, since we already know the slope of AB.

BC: (x1,y1)=(6,6) and (x2,y2)=(4,0)

m = (0 - 6)/(4-6)

   = -6/-2

   =3

So the slope is exactly the same as the slope of AD. A square is a parallelogram, so it has two pairs of opposite parallel sides. We already verified that 3 and -1/3 are opposite reciprocals, so we now know that angle B has a measure of 90 degrees as well. You can do the same for angles C and D. That way, you'll have proven that all the sides have the same length and all the angles measure 90 degrees-- so the quadrilateral ABCD matches the definition of a square.

Hope this helped!

Assuming an equal probability of having a girl or a boy for each child, the probability that a couple does not have girls for all three children is 1/8 or approximately 0.125 (12.5%).

If we assume that the probability of having a girl or a boy for each child is equal (which is a simplifying assumption), then the probability of having a girl for each child is 1/2, and the probability of having a boy is also 1/2.

To find the probability that the couple does not have girls for all three children, we need to find the probability of having a boy for each child. Since the gender of each child is independent of the others, we can multiply the probabilities together.

So, the probability of having a boy for the first child is 1/2, for the second child is also 1/2, and for the third child is also 1/2.

Multiplying these probabilities together, we get:

(1/2) * (1/2) * (1/2) = 1/8

Therefore, the probability that the couple does not have girls for all three children is 1/8 or approximately 0.125 (12.5%).

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\(9x+4y=4\implies 4y=-9x+4\implies y=\cfrac{-9x+4}{4} \\\\\\ y=\cfrac{-9x}{4}+\cfrac{4}{4}\implies y=\stackrel{\stackrel{m}{\downarrow }}{-\cfrac{9}{4}}x+1\qquad \impliedby \qquad \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}\)

Answer:

1.) B (Real Numbers)

2.) A

Step-by-step explanation:

Answer:

I cannot see the picture

Step-by-step explanation:

Answer:-12x

Step-by-step explanation:

just trust me on this

Answer:

The one that you pick is correct

Answer: 118

Step-by-step explanation: if x=4 then 4x3 to the 2nd power= 144. 13x2=26

144-26=118

Answer:

The answer is 10

Step-by-step explanation:

1.  4 x 3²  - 13 x 2

2. 4 x 9 - 13 x 2

3. 4 x 9 - 26

4. 36 - 26 = 10

5. = 10