3 years ago

Find X look at the picture down below Please help me

Mathematics

1 answer:

kolezko [41]3 years ago

4 0

I’m guessing its 120

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o-na [289]

Answer:

x=3 hope this helps

Step-by-step explanation:

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3 years ago

Solve the equation 4y-1.9=6.3

Liono4ka [1.6K]

I’ve attached my work...
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if the height of the cylinder with a radius of 12 cm and a height of 20 cm has the same volume as a cone with a radius of 8 cm.

Marrrta [24]

Answer:

$\large\boxed{H=135\ cm}$

Step-by-step explanation:

The formula of a volume of a cylinder:

$V=\pi r^2H$

r - radius

H - height

We have the radius r = 12cm and the height H = 20cm. Substitute:

$V=\pi(12^2)(20)=\pi(144)(20)=2880\pi\ cm^3$

The formula of a volume of a cone:

$V=\dfrac{1}{3}\pi r^2H$

r - radius

H - height

We have the radius r = 8cm and the volume V = 2880πcm³. Substitute:

$\dfrac{1}{3}\pi(8^2)H=2880\pi\qquad\text{divide both sides by}\ \pi\\\\\dfrac{1}{3}(64)H=2880\qquad\text{multiply both sides by 3}\\\\64H=8640\qquad\text{divide both sides by 64}\\\\H=135\ cm$

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3 years ago

Mike had a jar of nickels that had five more nickels than he originally thought. If the total amount of nickels was $4.35, how m

aivan3 [116]

A nickel is worth 5 cents. So if he has 5 nickels extra. They are worth 25 cents. Subtract 0.25 from 4.35 and you get 4.10. Now all you have to do is divide 4.10 by 0.05, which is a nickel. The answer is "Mike thought he had 82 nickels"

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What exponent goes with the area of a triangle

user100 [1]

Answer:

its just 1/2 times base times height

Step-by-step explanation:

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