A sphere has a radius of 2x + 4. Which polynomial in standard form best describes the total surface area of the sphere? Use the formula for the surface area of a sphere.

16pi(x^2) + 64pix + 16pi

Step-by-step explanation:

Surface area is 4 * pi * r^2. The radius is r.

Plug in "2x+4" for r, to get the surface area.

4 * pi * (4x^2 + 16x + 4) =

16pi(x^2) + 64pix + 16pi

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47

b

step-by-step explanation: