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2 years ago

The radius of a circle is 13 miles. What is the circle's area?

Mathematics

2 answers:

Makovka662 [10]2 years ago

5 0

Solution:

Radius: 13 miles
Area of circle = (π)(r²)

<u>Finding the area of the circle:</u>

Area of circle = (π)(r²)
=> Area of circle = (3.14)(13²)
=> Area of circle = 3.14 x 169
=> Area of circle = 530.66 m²

lesantik [10]2 years ago

3 0

A=π×r×2=

=π×13×2 =

530.92916 mi²

here is your answer

hope it will help u

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Write this number in word form 890,704

zhannawk [14.2K]

Answer: eight hundred ninety thousand, seven hundred four

8 0

3 years ago

If pencils sell at 6 for 59 cents how many pencils can be bought for 2.95

Olegator [25]

We already know from the given data that 6 pencils can be bought for 59 cents. We have to determine the number of pencils that can be bought for $2.95.
So
Price of 6 pencils = 59 cents.
Price of 1 pencil = (59/6) cents
   = 9.83 cents
Now total amount in hand for buying pencils = $2.95
   = 295 cents
Then the number of pencils that can be bought for 295 cents = (295/9.83)
   = 30.01
So the maximum number of pencils that can be bought for $2.95 is 30 pencils.

4 0

3 years ago

Read 2 more answers

Quotient of 120 and 10

saw5 [17]

Quotient is the result of division
120 divided by 10 = 12

therefore your quotient would be 12

5 0

3 years ago

Read 2 more answers

What is the rate of change from x = n to x = 2n?

puteri [66]

Answer:

$\dfrac{-8}{\pi}$

Step-by-step explanation:

The rate of change of the function f(x) from point $x_1$ to point $x_2$ can be calculated using formula

$\dfrac{f(x_2)-f(x_1)}{x_2-x_1}$

Given

$x_1=\pi\\ \\x_2=2\pi$

From the graph of the function

$f(x_1)=f(\pi)=4\\ \\f(x_2)=f(2\pi)=-4$

So, the rate of change is

$\dfrac{f(x_2)-f(x_1)}{x_2-x_1}=\dfrac{-4-4}{2\pi -\pi}=\dfrac{-8}{\pi}$

5 0

3 years ago

Does anyone understand how to do this

Lerok [7]

Answer:

Step-by-step explanation:

I understand it! (But I'm a high school math teacher so it might be unfair!) ; )

Anyway you have 2 numbers. You don't know what they are so we will call them x and y. Our first statement says that these numbers multiply to equal 120. So that first equation is

xy = 120

Our second statement says that they add to -22. So that second equation is

x + y = -22

Now we need to find the 2 numbers. We have 2 unknowns, x and y. That means that we have to have 2 equations. No more than 2 no less than 2. Solve the first equation for y. It doesn't matter which equation you pick and which variable you choose to solve for. If you do the work correctly, you will get the correct answers either way. Solving the first equation for y gives you:

$y=\frac{120}{x}$