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EastWind [94]
4 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]4 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]4 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.)

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alexandr1967 [171]
This one’s pretty easy because it’s a square meaning the corners will always be 90 degrees so if a line splits the 90 it becomes half which is 45. And the reason AEB is 90 is because it’s two top corners are 45 degrees so the last angle must make the whole triangle equal 180 degrees.
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7 0
3 years ago
What is the slope of the line that passes through the points (2, 1) and (17, -17)?
max2010maxim [7]

Answer:

-18/15 or the slope is -1.2

Step-by-step explanation:

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4 0
3 years ago
Why is the limit to infinity of 2^n/2^n+1 = lim to infinity 1/2?
Elis [28]

Step-by-step explanation:

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lim(n→∞) (1 / 2)

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7 0
3 years ago
Suppose you have 20 coins that total $4.some coins are nickles and sime are quarters .which of the following pairs of equations
Monica [59]
So 1 nickle=5 cents
1 quarter=25 sents

q=number of quarters
n=number of nickles so

total is
q+n=20
5n+25q=400 (since 100 cents=1 dollar and 4 dollares=400 cents)

SO THE 2 EQUATIONS WOULD BE
n+q=20
5n+25q=400

so q+n=20
subtract q from both sides
n=20-q
subsitute 20-q for n in the second equation
5(20-q)+25q=400
distribute
100-5q+25q=400
add like terms
100+20q=400
subtract 100 from both sides
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divide both sides by 20
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thhere are 15 quarters

subsitute 15 for q in first equation

15+n=20
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5 nickles
15 quarters
4 0
4 years ago
La suma de dos números enteros consecutivos es<br> menor que 57.
g100num [7]

Answer: La respuesta es 28 y 29. Tengo que explicar?

7 0
3 years ago
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