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Allisa [31]
3 years ago
9

A contractor is building a circular swimming pool. The radius of the circle 14 feet. He needs to know the circumference in order

to buy tile to put around the edge of the pool. What is the circumference if he uses pi=22/7
Mathematics
2 answers:
svetlana [45]3 years ago
8 0
The circumference is 43.96 feet long. Hope this helps!
Furkat [3]3 years ago
7 0

Answer:

Circumference of the circle is, 88 ft

Step-by-step explanation:

Circumference of the circle(C) is given by:

C=2 \pi r

where, r is the radius of the circle.

As per the statement:

A contractor is building a circular swimming pool. The radius of the circle 14 feet.

⇒r = 14 feet

Substitute the given values in [1] we have;

C=2 \cdot \frac{22}{7}\cdot 14

⇒C=2 \cdot 22 \cdot 2

⇒C=88 ft

Therefore, the circumference of the circle is, 88 ft

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vitfil [10]

Answer:

About 20%

Step-by-step explanation:

The probability of a point on the un-shaded region will be given by;

Area of the shaded region/total area  

Considering that the circles are of the same size, then the length of the square is 2d

Area of the square = 4d²

Area of the shaded = (4d² -4π(d/2)²

= 4d² -πd², but π = 22/7

= 6/7d²

Probability = (6/7d² ÷ 4d²) × 100%

= (6/28 d²) × 100%

= 21.42 %

So your answer is B. 20%

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3 years ago
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Answer:

It would take 6 days for 500 students to be affected.

Step-by-step explanation:

Given that:

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First day:

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130% of 7 = (130/100) × 7

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Day 2:

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Day3

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Day4

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New total affected = 244 + 188 = 432

Day6

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