1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
dusya [7]
4 years ago
7

Susan designed a circular pool with diameter of 25 meters. What is the area of the bottom of the pool?

Mathematics
2 answers:
wel4 years ago
7 0

Answer: Area = 490.87  meters

Step-by-step explanation:

A=πr2

r = 12.5 (1/2 of diameter)

A = 490.87  meters

hjlf4 years ago
4 0

Step-by-step explanation:

We know that the formula to find the area of a circle is πr^2 or in other words, pi times the radius squared. We have been given the diamter of 25 inches. We know that the diamater is double the radius. 25 divided by 2 will get us 12.5. If we write this in equation form (or substitute the variables) will be written as: (3.14)12.5^2, 3.14 being pi. Now, we would multiply the radius by radius (because it's squared) or in other words, (12.5*12.5) to equal 156.25. If we write this in equation form, we would get: 3.14(156.25). Now we finally multiply pi (3.14) times 156.25 to equal 490.625 or rounded to the tenth 490.6

You might be interested in
Which expression is a prime polynomial?A. X^3-bx^2B. X^2-4x-12C. X^+8xy^3D. X^2-b^3
SOVA2 [1]

A prime polynomial is one that can only be divided by itself and 1. Let's check it option.

A. x³-bx²

This polynomial can be divided by itself, 1, x and x². So it can't be prime.

B. x²-4x-12

This polynomial represents the standard form of a second order polynomial. This means that it is a parabolla. A polynomial of this form can be divided by (x-a) where "a" is the value of its roots. So it can't be prime.

C. x+8xy³

This polynomial can be divided by x, 1 and itself, therefore it can't be a prime.

D. x²-b³

This polynomial can only be divided by 1 and itself. So this is the correct answer.

5 0
2 years ago
The circumference of a circular garden is 141.3 feet. What is the radius of the garden? Use 3.14 for π and do not round your ans
Olin [163]

Answer:

<h2>22.5 feet</h2>

Step-by-step explanation:

The formula for circumference is 2(3.14)r

So, we divide 141.3 by 6.28 and get 22.5

The radius is 22.5 feet.

8 0
2 years ago
Five pipes can fill a tank in 80 minutes. At the same rate, how long will it take 8 pipes to fill the same tank?
miss Akunina [59]

Answer:

50 minutes

Step-by-step explanation:

it takes 80 minutes for 5 pipes

so for 1 pipe it will take 5x80=400min

and for 8 pipes it will take 400/8=50min

8 0
3 years ago
Given that f(x) = x2 + 4x – 21 and g(x) = x - 3, find f(x) · g(x) and
jolli1 [7]

9514 1404 393

Answer:

  (f·g)(x) = x^3 +x^2 -33x +63

Step-by-step explanation:

The product of the two functions can be found using the distributive property.

  f(x)\cdot g(x)=(x^2+4x-21)\cdot(x-3)\\\\=(x^2+4x-21)(x)+(x^2+4x-21)(-3)\\\\=x^3+4x^2-21x-3x^2-12x+63\\\\\boxed{(f\cdot g)(x)=x^3 +x^2-33x+63}

8 0
3 years ago
An equiangular triangle is also known as:<br> acute<br> right.<br> regular<br> obtuse
Contact [7]

It's also known as a acute triangle.

4 0
3 years ago
Other questions:
  • Find the slope of the line y=-5/4x+3
    11·2 answers
  • 3. The Human Resources department of a large corporation wants to estimate the mean number
    7·1 answer
  • Which number is IRRATIONAL?<br> A) <br> 16<br> B) <br> 18<br> C) <br> 25<br> D) <br> 36
    7·1 answer
  • José left Westcliffe on his bicycle riding at an average rate of 8 miles per hour five hours before his father left by automobil
    6·1 answer
  • The Spanish club sold hot pretzels as a fundraiser. The pretzels normally sold for $2.00, but near the end of the sale the price
    8·1 answer
  • Jayla says that the equation y=2x-3 matched the graph. Substitute the ordered pairs from part c into the equation to prove that
    5·1 answer
  • Write an expression for the calculation the product of 4 and 4 added to double the number 5
    6·1 answer
  • Tommy rented a scooter for 15 dollars plus 7 dollars per hour. He paid 29 dollars in total. How many hours was he able to rent t
    10·1 answer
  • For each point, identify the axis or quadrant where the point is located.
    9·1 answer
  • What is central and inscribed angle​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!