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hram777 [196]
3 years ago
9

I need help. Like just help please lol I don’t understand this and I’m dumb :) thanks

Mathematics
2 answers:
nalin [4]3 years ago
6 0

Answer:

3014.4ft^3

even though this is not the most precise answer, ths is the answer you will be looking for

Step-by-step explanation:

To find the volume of a cylinder you use the formula V=\pi r^2h\\=\pi *8^2*15\\=3015.93ft^3

yulyashka [42]3 years ago
3 0

Answer:

C

Step-by-step explanation:

The formula for the volume of a cylinder is \pi r^2 h, since you are multiplying the area of the base (a circle) by the height of the cylinder to find the volume. Therefore, the volume of this cylinder is:

\pi r^2 h= \\\\3.14 \cdot 8^2 \cdot 15=\\\\3.14 \cdot 960=\\\\3014.4

Hope this helps!

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What is the value of x?
joja [24]
6x+6x+8x=180
20x=180
x=9
5 0
3 years ago
Prove that lines 3x-4y=12 and 3y=12-4x are perpendicular.
Svetllana [295]

Answer:

see explanation

Step-by-step explanation:

If 2 lines are perpendicular then the product of their slopes equals - 1

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Consider the given equations

3x - 4y = 12 ( subtract 3x from both sides )

- 4y = - 3x + 12 ( divide terms by - 4 )

y = \frac{3}{4} x - 3 ← in slope- intercept form

with slope m = \frac{3}{4}

3y = 12 - 4x = - 4x + 12 ( divide terms by 3 )

y = - \frac{4}{3} x + 4 ← in slope- intercept form

with slope m = - \frac{4}{3}

Then

\frac{3}{4} × - \frac{4}{3} = - 1

Since the product of their slopes = - 1 then the lines are perpendicular

3 0
3 years ago
Please help! I’m really stuck.
IRISSAK [1]

Answer:

The question that you asked is kind of confusing but I think that I have it.

Step-by-step explanation:

So, as you said Marvin moves by a 1 by 1. 1 to the right and then 1 up. But there is an obstacle at (4,3). To evade that obstacle I would suggest going up four, and then over 1. To be honest, there are a ton of ways. All you have to do is just steer clear of (4,3).

3 0
3 years ago
Mason, a hardwood flooring installer, needs to calculate the amount of hardwood flooring needed to cover a floor that's 33⁄4 yar
Aleksandr-060686 [28]

Answer:

20 5/8 yd^2

Step-by-step explanation:

width = 3 3/4 yd

length = 5 1/2 yd

First change both measurements to fractions.

3 3/4 = 3 + 3/4 = 12/4 + 3/4 = 15/4

5 1/2 = 5 + 1/2 = 10/2 + 1/2 = 11/2

area = length * width

area = 15/4 yd * 11/2 yd

area = (15 * 11)/(4 * 2) yd^2

area = 165/8 yd^2

165/8 = 20 remainder 5

area = 20 5/8 yd^2

3 0
4 years ago
Four students want to have their picture taken together. They will stand side-by-side for the picture. In how many different way
yulyashka [42]

Answer:

  • 24 ways

Step-by-step explanation:

<u>This is the permutation of 4:</u>

  • 4P4 = 4! = 1*2*3*4 = 24 ways
8 0
3 years ago
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