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maw [93]
3 years ago
12

A circular swimming pool is 21 feet in

Mathematics
1 answer:
Aleksandr [31]3 years ago
6 0

Answer:

G. 66 feet

Step-by-step explanation:

Radius = 21/2 = 10.5

Circumference

2 × 3.14 × 10.5

65.94 feet

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Free_Kalibri [48]
Using sin law;

sin A/ a = sinB/ b

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solving for b;
sin(90) / 21 = sin(B) / 8 ; B = 22.39 degrees

Total angle of triangle = 180

180 - 90 - 22.39 = x
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3 years ago
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gregori [183]

Answer:

Myra: 24.8s (winner) Byron: 26.3s

Step-by-step explanation:

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2 years ago
A bag contains 13 pieces of candy. In how many ways can five pieces be selected?
Whitepunk [10]

Five pieces can be selected in 1287 ways

Step-by-step explanation:

When the selection has to be made without considering the order of selection, combinations are used.

The formula for combination is:

C(n,r) = \frac{n!}{r!(n-r)!}

Here

Total candies = n = 13

Candies to be selected = r = 5

Putting the values in the formula

C(13,5) = \frac{13!}{5!(13-5)!}\\=\frac{13!}{5!8!}\\=1287\ ways

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Keywords: Combinations, selection

Learn more about combinations at:

  • brainly.com/question/11203617
  • brainly.com/question/11253316

#LearnwithBrainly

3 0
3 years ago
Help, I’m stuck. Thank you very much
ZanzabumX [31]
If you notice, the container is really just two circles, with a diameter of 4 each, and a square with sides of 10.5.

now, if we just get the area of each circle, keeping in mind their radius is half of the diameter, namely r = 2, and get the area of the 10.5x10.5 square, sum them up, that'd be the surface area of the container.

\bf \stackrel{\textit{2 circle's area}}{2(\pi r^2)}~~+~~\stackrel{\textit{area of the square}}{10.5\cdot 10.5}&#10;\\\\\\&#10;\stackrel{\textit{2 circle's area}}{2(\pi 2^2)}~~+~~\stackrel{\textit{area of the square}}{10.5\cdot 10.5}\implies 8\pi + 110.25
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3 years ago
What is the difference between theoretical and probability and experimental probability
mars1129 [50]

Answer: Theoretical- In a perfect world everything is a 50/50 chance and experimental is real world and the probability is not 50/50.

Step-by-step explanation:

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