Answer:
see below
Step-by-step explanation:
The surface area of a cylinder is
SA = 2 pi r^2 + 2 pi rh because there is a top and a bottom
= 2 * pi (5)^2 + 2 * pi (5) (10.6)
= 50 pi + 106pi
= 156 pi
=489.84 yd^2
The answer is x = 2a^3 - 3a
4x-30=180
180-30
4x=150
150/4
37.5
x=37.5
Answer:
the answer is d
Step-by-step explanation:
1st day : 7 × 10 = 70
5 × 7 = 35 70+ 35= 105
2nd day : 7 × 10 = 70
2 × 7 = 14 70+14 = 84