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Liono4ka [1.6K]
3 years ago
9

Find the volume of the cone. Leave your answers in therms of pi.

Mathematics
1 answer:
SOVA2 [1]3 years ago
5 0
Hey there! :)

The formula for finding volume of a cone = (π · r² · h) ÷ 3

r = 3
3² = 3 × 3 = 9

h = 7

7 × 3 × π = 21π

Your answer is C. 21π³

Hope this helps :)
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Which is the value of this expression when j=-2
Nuetrik [128]

Answer:

Step-by-step explanation:

(jk^-2/j^-1k^-3)^3

(-2)(-1)^-2

-------------               ^3

(-2)^-1(-1)^-3

switch negative exponenst to other side

(-2)(-2)(-1)^3

__________

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-----

1

= -4

REMEMBER all to the 3rd power!

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3 0
3 years ago
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alexandr1967 [171]
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4 0
3 years ago
The value of y varies directly as x and y is 9 when x is -3 what constant of variation k?
Lady bird [3.3K]
Y/x=k

when y=9, then x= -3
        9/-3=-3
⇒ k= -3
7 0
3 years ago
Find the missing angle.<br> A.65<br> B.75<br> C.70<br> D.85
vovangra [49]
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3 0
3 years ago
At track practice, Coach Wilson told the team to split into groups of four for a special relay. The first runner had to run 1 la
amid [387]
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440 + 2(440) + 3(440) + 4(440)
= 440 + 880 + 1,320 + 1,760
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Or you can add the laps first, then multiply by the yards in each lap
(1 + 2 + 3 + 4)(440)
= 10 x 440
= 4,400 yards
7 0
3 years ago
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