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Andrews [41]
2 years ago
11

A circular swimming pool has a radius of 28 ft. There is a path all the way around the pool that is 4 ft wide. A fence is going

to be built around the outside edge of the pool path. A circle has a radius of 28 feet. A larger circle goes around the smaller circle that is 4 feet wide. About how many feet of fencing are needed to go around the pool path? Use 3.14 for Pi.
Mathematics
2 answers:
AleksAgata [21]2 years ago
4 0

Answer:

200.96 feet

Step-by-step explanation:

We have a pool with a radius of 28 feet.

They also tell us that there is a path around the pool and its width is 4 feet.

Thus:

The radius of the outer edge of the pool path would be equal to the radius of the pool plus the width of the path.

= (28 + 4) feet

= 32 feet

To find the length of the fence, we need to find the circumference of the outside of the pool path. The radius is then equal to 32 feet.

The circumference of the outer edge of the pool path would be equal to the perimeter.

p = 2 * pi * r

replacing

p = 2 * 3.14 * 32

p = 200.96 feet

therefore 200.96 feet are needed

Anestetic [448]2 years ago
3 0

Answer:

The answer is D, 201

Step-by-step explanation:

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Tresset [83]

Answer: 22\frac{1}{2}\text{ Feet}

Step-by-step explanation:

Here, the vertical space between two consecutive stairs in first 10 stairs = 1\frac{1}{3}\text{ feet}

⇒ The total vertical distance for 10 stairs = 10\times 1\frac{1}{3}=10\times \frac{4}{3}=\frac{40}{3}\text{ feet}

Also, The vertical space between two consecutive stairs for last 5 stairs = 1\frac{3}{4}\text{ feet}

⇒ The total vertical distance for 10 stairs = 10\times 1\frac{1}{3}=5\times \frac{7}{4}=\frac{35}{4}\text{ feet}

Thus, The total vertical distance = Total vertical space for the first 10 stairs + Total vertical space for the last 5 stairs

= \frac{40}{3} + \frac{35}{4}

= \frac{160+105}{12}

= \frac{265}{12}

= 22\frac{1}{2}\text{ Feet}

4 0
2 years ago
Mr. Peterson needs topsoil for his garden. His rectangular garden is 78 in long and 48 in wide. A bag of topsoil covers an area
nata0808 [166]

Answer:

3744 inches squared, and 8 bags

Step-by-step explanation:

Ⓗⓘ ⓣⓗⓔⓡⓔ

˜”*°•.˜”*°• Area: •°*”˜.•°*”˜

Well, the formula for area is L*W

L=78 inches

W=48 inches

78*48=3744 inches squared

˜”*°•.˜”*°• Number of bags: •°*”˜.•°*”˜

3744/500=7.448

So he would need to buy 8 bags

(っ◔◡◔)っ ♥ Hope this helped! Have a great day! :) ♥

4 0
1 year ago
3. A small airplane flew 104 miles in 50
N76 [4]
124.8 miles. 104/50=2.08. 2.08x60=124.8.
4 0
2 years ago
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In order for a constitutional amendment to the Florida constitution to pass 60% of the popular vote must support the amendment.
max2010maxim [7]

Answer:

H_{0}: p \leq 0.6\\H_A: p > 0.6

Step-by-step explanation:

We are given the following in the question:

Percentage of vote required for constitutional amendment = 60%

p = 60% = 0.6

Hypothesis:

More than sixty percent of the voters would support a new amendment about higher education.

We design the null and the alternate hypothesis  

H_{0}: p \leq 0.6\\H_A: p > 0.6

Interpretation:

The null hypothesis states that less than or equal to 60% of the voter support the new amendment and the alternative hypothesis states that gretaer than 60% supports the amendment about higher education.

4 0
2 years ago
What symbol is used for the standard deviation when it is a sample statistic? what symbol is used for the standard deviation whe
Yuki888 [10]
You use the lower case letter s for the sample standard deviation

You use the greek letter sigma (written as \sigma) for the population standard deviation
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2 years ago
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