Hi I need help and step by step stuff with all this thanks -9(t – 2) = 4(t – 15)
10(2y + 2) – y = 2(8y -8)

t = 6

y = -12

Step-by-step explanation:

-9(t – 2) = 4(t – 15)

-9t + 18 = 4t - 60

-13t = -42

t = 6

10(2y + 2) – y = 2(8y -8)

20y + 20 - y = 16y - 16

3y = -36

y = -12

hi

Step-by-step explanation:

then, the surface area of the sphere shown in the image is: 256π sq. units!

step-by-step explanation:

the lateral surface area of a sphere is 2πrh where h=2r.

then:

surface area = 4πr^2.

in this case, r=8 units ⇒ surface area = 4π(8 units)^2. = 256π sq. units!

then, the surface area of the sphere shown in the image is: 256π sq. units!

11.2

step-by-step explanation:

when doing tangent the tangent of the angle is equal to the opposite side from the angle over the adjacent side to the angle.

tan43 = x / 12

move 12 over by multiplying each side by 12

12tan43 = x

x = about 11.2