3 years ago

What is the volume of the cone? Use 3.14 for π

Mathematics

1 answer:

daser333 [38]3 years ago

8 0

Answer:

What is the height, radius or diameter of the cone?????

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Two Trains left a station at the same time. One traveled north at a certain speed and the other traveled south at twice that spe

sashaice [31]

Let s = northbound train
Then
2s = southbound train
:
Distance = time * speed
4s + 4(2s) = 600
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4s + 8s = 600
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12s = 600
:
s = 600/12
:
s = 50 mph is the northbound train
Then
2(50) = 100 mph is the southbound train
:
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Check:
4(50) + 4(100) = 600

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3 years ago

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If 60 minutes equals one hour, which expression would you use to find the number of

Kisachek [45]

Answer is: 60x=240
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3 years ago

(sin x)(tan x cos x - cot x cos x) = 1 - 2 cos2x

Aliun [14]

As

$\tan x=\dfrac{\sin x}{\cos x}$
$\cot x=\dfrac{\cos x}{\sin x}$

we have

$\sin x(\tan x\cos x-\cot x\cos x)=\sin x\left(\sin x-\dfrac{\cos^2x}{\sin x}\right)=\sin^2x-\cos^2x$

Recalling that $\cos2x=\cos^2x-\sin^2x$ , we end up with

$-\cos2x=1-2\cos2x$
$1=\cos2x$
$\implies2x=2n\pi$

(where $n$ is any integer)

$\implies x=n\pi$

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3 years ago

Help me out please! everyday !

Lady bird [3.3K]

Answer:

V = 904.32 ft^3

Step-by-step explanation:

The volume of a sphere is given by

V = 4/3 pi r^3

The radius is 6 and pi = 3.14

V = 4/3 ( 3.14) (6)^3

V = 904.31999 ft^3

Rounding to the hundredths place

V = 904.32 ft^3

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I need help please and please explain your answer.

lesya692 [45]

Answer:

I think it is B or D

actually it is B i got 100%

Step-by-step explanation:

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2 years ago