Question

I need help please i have yo show my work number 7 and 8 and 9

Answer 1

12/24

Explanation:

Answer 2

7. D

`128{in}^(2)`
lateral surface area=

`2 * \pi * r * h`
2 × pi × 3.0625 × 6.625 = 127.48

8. A 14.5in^2

A=l×w
5 × 0.5 = 2.5
A=(bh)/2
(6 × 4)/2
24/2= 12

2.5 + 12= 14.5in^2

9. D. l=15 w=12
Ratio:
l/w =l/w
15/30 = x/24
15 × 24 = 360
360/30 = 12
15/30 = 12/24
The other answers don't match if you plug them into the equation. For example, C, if you plug in 24 over 30, solving for x over 24, you'd get 19.2 for x instead of 18.

I hope this helped. Sorry if my explanation didn't make sense.