All categories

2 years ago

The radius of a circle is 14 inches. What is the circle's area?

Mathematics

1 answer:

Anna007 [38]2 years ago

6 0

Answer:

153.86 inches²

Step-by-step explanation:

How do we find the radius of a circle?

The radius of a circle is 1/2 of the diameter, so 14/2 = 7 inches

How do we find the area of a circle?

We can find the area of a circle by using πr², where r = radius. We're given the radius as 7 inches and pi as 3.14.

<u>Solving</u>

$3.14*7^2$
$3.14*49$
$153.86$

Therefore, the answer is 153.86 inches².

Have a lovely rest of your day/night, and good luck with your assignments! ♡

You might be interested in

Kimmie sells custom T-shirts for $12 each at the flea market every Saturday She usually sells 36 T-shirts Kimmie surveys her cus

Phantasy [73]

Answer:

y = -2*x² + 60*x

Step-by-step explanation:

The general form of a quadratic function is:

y = a*x² + b*x + c

We need to determine a ; b ; and c. For that we have three conditions therefore

Condition 1 at x = 12 $ each T-shirts kimmie sells 36 units, then she gets

12* 36 = 432 $ or y = 432 and

432 = a(12)² + 12*b + c or 432 = 144*a + 12*b + c

Second condition selling at 13 $ each T-shirt she sells 34 , then

13*34 = 442

442 = a(13)² + 13*b + c or 442 = 169*a + 13*b + c

And the third condition

11*38 = 418

418 = a* ( 121) + 11*b + c 418 = 121*a + 11*b + c

We have a three equation system

432 = 144*a + 12*b + c (1)

442 = 169*a + 13*b + c (2)

418 = 121*a + 11*b + c (3)

We need to solve it for a, b and c

Subtracting (2) - (1) 10 = 25*a + b and subtracting (2) - (3)

24 = 48*a + 2*b

Then b = 10 - 25*a and 24 = 48*a + 2*( 10 - 25*a )

24 = 48*a + 20 - 50*a

24 - 20 = -2*a

4 = - 2*a

a = - 2 and b = 10 - 25*( -2) b = 60

Finally c is: 432 = 144*a + 12*b + c

432 = 144* ( -2) + 12*60 + c

432 = - 288 + 720 + c

432 = 432 + c

c = 0

The quadratic function is:

y = -2*x² + 60*x

8 0

3 years ago

He sum of a number and twenty-one is sixty-four.

OleMash [197]

Answer:

Step-by-step explanation:

Let's call this number x. The word sum means addition, so we can write x + 21 = 64. When we subtract 21 from both sides, we get x = 43. Hope this helps!

7 0

3 years ago

Read 2 more answers

What is the discontinuity of the function f(x) = x^2 - 3x -28 / x + 4

lakkis [162]

A discontinuity occurs when the denominator equals zero

it will be either a hole or an asymptote

x+4 = 0

subtract 4 from each side

x=-4

7 0

3 years ago

Read 2 more answers

What is the ratio of 2 feet to 4 yards?

lora16 [44]

Answer:

Step-by-step explanation:

Your Answer will be 8 Because you did 2 times 4

4 0

3 years ago

Read 2 more answers

Divide 30 in ratio 4:2

castortr0y [4]

20 to 10 I think but not sure hope this helps

3 0

4 years ago