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3 years ago

Help me understand please

Mathematics

1 answer:

erastova [34]3 years ago

6 0

Answer:

V=pi x (r)^2 x h

V-volume r-radius h-height

V= pi x (3)^2 x 9

V= pi x 9 x 9

V= pi x 81

V= 254.47 (rounded)

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Carlos is analyzing the results of an experiment on two groups of mice in which he compared the difference in their weight gain

Arlecino [84]

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3 years ago

A tree grows vertically on a hillside. The hill is at a 16° angle to the horizontal. The tree casts an 18-meter shadow up the hi

elixir [45]

The height of the tree is the sum of the part below the line parallel to the horizontal and the part above the line parallel to the horizontal.

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8 0

3 years ago

Astronomers measure large distances in light-years. One light-year is the distance that light can travel in one year, or approxi

Semenov [28]

Answer:

Option B - $=8.4672\times 10^{13}$

Step-by-step explanation:

Given : Astronomers measure large distances in light-years. One light-year is the distance that light can travel in one year, or approximately 5,880,000,000,000 miles.Suppose a star is 14.4 light years from earth.

To find : In scientific notation, how many miles away a star is from earth?

Solution :

One light-year is the distance that light can travel in one year is = 5,880,000,000,000 miles.

In scientific notation, $5.88\times 10^{12}$ miles.

In 14.4 lights year the distance is $=14.4\times5.88\times 10^{12}$

In 14.4 lights year the distance is $=84.672\times 10^{12}$

or $=8.4672\times 10^{13}$

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2 years ago

What is the measure of each interior angle of a regular octagon?

Anuta_ua [19.1K]

Answer:

I think the answer is Option D, 135 degrees.

Since the angles of all of the octagon combined is 1080, divide that by 8 to get 135 which means that all 8 angles are 135 degrees.

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3 years ago

Read 2 more answers

A party is thrown where 25 tables are used. Each table either sits 4people or 6 people. A total of 116 people can be sat at the

nignag [31]

Okay, so I'm gonna do this in terms of x and y, because that's what I'm used to.
s= x = 4-person tables
a= y = 6-person tables
x + y = 25
~ You use 25 tables so no matter how many of each kind are there, you end up with 25 tables so it should add up to 25.
4x + 6y = 116
~ You know that there will always be a total of 116 people at the tables. And in this case 4 and 6 are the number of people that can be seated at these tables, so in terms of people, you would say 4x and 6y.
To find out the amount of six people tables, solve for y and that's your answer.
You could do this a variety of ways.
One way is the substitution, for that you would rearrange the first equation for y, then plug in that value for y in the second equation and then solve for y. That value you get is your answer.

7 0

3 years ago

Help me understand please​

Help me understand please