PLS HELP FIRST CORRECT ANSWER GETS BRAINLIEST !! A pile of tailings from a gold dredge is in the shape of a cone. The diameter o

Question

3 years ago

13

PLS HELP FIRST CORRECT ANSWER GETS BRAINLIEST !! A pile of tailings from a gold dredge is in the shape of a cone. The diameter o

f the base is 34 feet and the height is 16 feet. Approximately, how many cubic feet of gravel is in the pile? Use π = 3.14.
A. 14,527 ft³
B. 285 ft³
C. 4,840 ft³
D. 6,032 ft³

Mathematics

2 answers:

KonstantinChe [14] · Answer 1 · 2022-03-01T21:33:36+03:00

KonstantinChe [14]3 years ago

8 0

Answer:

C

Step-by-step explanation:

use volume of cone:

$v = \frac{1 }{3} \pi {r}^{2} h$

then find r which is half of the diameter so r=17 in this case. then you plug everything into the formula and solve.

andre [41] · Answer 2 · 2022-03-01T19:48:08+03:00

andre [41]3 years ago

4 0

Answer:

C: $V=4840 (2 s.f.)$

Step-by-step explanation:

The formula for the volume of a cone is:

$V= \frac{1}{3} \pi r^2h$

Therefore,

$V=\frac{1}{3}\times 3.14\times(\frac{34}{2})^2\times 16\\\\V=4840 (2 s.f.)$