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2 years ago

HELP ME OUT PLS!!!!!

Mathematics

1 answer:

Vladimir79 [104]2 years ago

7 0

We observe that the

height of the cone is 8 in.

radius of the cone is 2 in.

Volume of a cone = 1/3 π r² h

where R = radius and h = height

Using the formula we get :

Volume = 1/3 π 2 × 2 × 8

= 32 / 3 π cm³

= 33.5 cm³ ( rounded to 10)

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Why do we divide by 4

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3 years ago

If the circumference of a circle is 84.5 ft, find the radius.

Elina [12.6K]

Answer:

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2 years ago

Read 2 more answers

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Answer:

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2 years ago

How do you inverse 3x-4y=6

vladimir1956 [14]

Answer:

To find the inverse you switch x and y

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3 years ago

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A railroad track rises 30 feet for every 400 feet of track. What is the measure of the angle of elevation of the track?

gtnhenbr [62]

Answer:

Step-by-step explanation:

Rising 30 feet for every 400 feet of track is not a very large angle of elevation. We set this up as a right triangle to use right triangle trig to solve for the missing angle. The height is 30 and the hypotenuse is 400. The height is the side opposite the angle in question, and the hypotenuse is the hypotenuse! This is the sin ratio. Setting up the ratio using our info:

$sin\theta=\frac{30}{400}$

When you are looking for a missing angle measure, as we are here, use the 2nd-->sin buttons to find the inverse of sin, which looks like this:

$sin^{-1}($

Enter in the fraction 30/400 after the parenthesis and then hit enter to get the angle measure of 4.3 degrees.

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3 years ago