What is the area of the circle below? Round to the nearest tenths place.

2290.22

Step-by-step explanation:

The formula for Area of a circle, is A = pi (r) ^2

(basically pi(3.14) times r(radius) squared.

your radius is 27. Don't forget your label.

the answer is 33,124

Step-by-step explanation:

so first, the fourmula to a circles area is A= (pie)(radius) (to the power of 2)

so now you have to find the radius by dividing the diamiter in half, so...

27 / 2 = 13.5

so A = (3.14)13.5 [to the power of two]

now you're going to wanna find the answer to 3.14 x 13.5 which is 182

so now to the power of two you multiply 182 x 182 = and that equals 33,124

rounded to the nearest tenths is the same exact thing so... yup

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15