Answer:
Below in bold.
Step-by-step explanation:
(a) Volume = volume of the cylinder + volume of hemisphere
= pi r^2 h + 1/2 * 4/3 pi r^3
= pi 2^2 3 + 2/3 pi 2^3
= 12pi + 16pi/3
= 52pi/3
= 52pi/3 in^3
= 54.45 in^3 to nearest hundredth.
(b) Surface area = area of base + area of curved part + area of the hemisphere
= pi 2^2 + 3 * 2pi 2 + 2 pi 2^2
= 4pi + 8 pi + 12pi
= 24pi in^2
= 75.40 to nearest hundredth.
It might be C. I used the process of elimination, so I'm not so certain
Answer:
135°
Step-by-step explanation:
(n-2) * 180 =
(8-2) * 180=
6*180= 1080
1080: 8 = 135
Answer:
$14.07
Step-by-step explanation:
100 - 15 = 85
You change this into a multiplier 0.85.
18 x 0.85 = 15.30
100 - 8 = 0.92
0.92 x 15.30 = 14.07