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Tju [1.3M]
4 years ago
5

A circular pool has a radius of 20 feet. What is the area of the pool? Use 3.14 for π.

Mathematics
1 answer:
Kisachek [45]4 years ago
7 0

Answer:

197.192

Step-by-step explanation:

The formula forthe area of a circle is 3.14r squared

so 3.14(20) 2(squared)=197.192

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Read 2 more answers
HELP ASAP!!! What is the difference between a prism and a pyramid? How does finding their surface area differ?​
pentagon [3]

Answer:

The sides are triangles. The total number of faces of a pyramid is one more than the number of edges of the base polygon. A prism has two bases and rectangular sides.To find the surface area of a pyramid, find the area of the base and the areas of all the triangular sides and add them together.

Step-by-step explanation:

sorry if im wrong

7 0
3 years ago
Alexis invests $475 in a bank account that earns 1.25% interest compounded annually. Which function models the growth of her inv
olchik [2.2K]
Answer: The function that modes this situation would be: y = 475(1 + .0125)^x.

This is an example of an exponential equation. These equations are always in the form y = ab^x.

The a value is the starting value. The b value is the interest rate. The x value is the number of years.

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8 0
3 years ago
Perform the indicated operation.
Vladimir [108]

\frac{2(a-3)}{(3+a)(3-a)}

Step-by-step explanation:

This can be written as;

\frac{8}{9-a^2} *\frac{a^2-6a+9}{4a^2-4a-24}

Perform factorization

9-a²=difference of squares formula

(3+a)(3-a)

4a²-4a-24

4(a²-a-6)

4(a²-3a+2a-6)

4(a(a-3)+2(a-3))

4((a+2)(a-3))

a²-6a+9

a²-3a-3a+9

a(a-3)-3(a-3)

(a-3)(a-3)

Rewrite the operation as;

\frac{8}{(3+a)(3-a)} *\frac{(a-3)(a-3)}{4((a+2)(a-3)}

cancel common to remain with;

\frac{2(a-3)}{(3+a)(3-a)}

Learn More

Factorization : brainly.com/question/11930808

Keywords : Operation

#LearnwithBrainly

7 0
3 years ago
Please help! photo is attached, will give brainliest.
Naddik [55]

Answer:84

Step-by-step explanation:

Okay. Are you taking calc? Dv/dt =d/dt(L(t)^3)=d/dt[(sqrt(14)+2t)^3]= 6(Sqrt(14)+2t)^2)=44. We defined t=0 to be time at which length is sqrt(14). Does that work?

8 0
2 years ago
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