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Georgia [21]
4 years ago
11

Which statements are true about a rectangular pyramid with a height of 15 inches and a base with the dimensions of 12 inches and

9 inches? Select three options. The area of the base of the pyramid, B, is 36 inches squared. The area of the base of the pyramid, B, is 108 inches squared. A rectangular prism with the dimensions of 9 inches by 12 inches by 15 inches will have the same volume as this pyramid. The volume of this pyramid is 540 inches cubed. A rectangular prism with the dimensions of 9 inches by 12 inches by 15 inches will have 3 times volume of this pyramid.
Mathematics
1 answer:
o-na [289]4 years ago
8 0

Answer:

B,D, and E

Step-by-step explanation:

The area of the base of the pyramid, B, is 108 inches squared.

The volume of this pyramid is 540 inches cubed.

A rectangular prism with the dimensions of 9 inches by 12 inches by 15 inches will have 3 times volume of this pyramid.

hope this helps! :3

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vaieri [72.5K]

Congruent means there's exact shape and angle magnitude since transformation requires relocation of an image there's no change to it's shape therefore it's congruent

5 0
3 years ago
Read 2 more answers
The volume of a cylinder is 980 pi The height of the cylinder is 20 in. What is the radius of the cylinder?
AlexFokin [52]
█ Question █

The volume of a cylinder is 980 pi The height of the cylinder is 20 in. What is the radius of the cylinder?

█ Explanation <span>█
</span>
We know the volume of the cylinder and the height, too. We are looking to find the radius. Do the following equation that is posted in the screenshot. 

Answer: The radius is 7

<span>Hope that helps! ★ <span>If you have further questions about this question or need more help, feel free to comment below or leave me a PM. -UnicornFudge aka Nadia </span></span>

7 0
3 years ago
I need help with this question
Sergeeva-Olga [200]

Answer:

Step-by-step explanation:

f(x) = 6x³-x²+4x+5

g(x) = 9x³-1

(f+g)(x) = {6x³-x²+4x+5} + {9x³-1}

open brackets

6x³-x²+4x+5 + 9x³-1

choose like terms

6x³+ 9x³-x²+4x+5 -1

15x³-x²+4x+4= x²(15x-1)+4(x+1)= (x²+4)(x+1)(15x-1)

(f+g)(x)= 15x³-x²+4x+4 =  (x²+4)(x+1)(15x-1)

(f+g)(2) = 15(2)³-(2)²+4(2)+4 = 15(8)-4+8+4 = 120+8 = 128

(f-g)(x) = {6x³-x²+4x+5} - {9x³-1}

open brackets

6x³-x²+4x+5 - 9x³+1

choose like terms

6x³- 9x³-x²+4x+5 +1

-3x³-x²+4x+6= -x²(3x+1)+2(2x+3)= (-x²+2)(3x+1)(2x+3) =  (2-x²)(3x+1)(2x+3)

(f-g)(x) = -3x³-x²+4x+6 = (2-x²)(3x+1)(2x+3)

(f-g)(-3) = -3(-3)³-(-3)²+4(-3)+6 = -3(-3x-3x-3)-(-3x-3)-12+6=-3(-27)-3(9)-12+6= 81-27-12+6 = 54-6= 48

(f-g)(-3) = 48

4 0
3 years ago
I need help with this!!!
7nadin3 [17]

Answer:

6

Step-by-step explanation:

cancel out 5 by multiplying its by 5, what you do to one side you do to the other.   so you also multiply 12 by 5. and you should get 60

3 0
3 years ago
Perfume is sold in two different sizes of bottle. The 80ml bottle is priced at £55. The 50ml bottle is usually priced at £45, bu
Nadya [2.5K]
1ml of 80ml bottle: 55/80 = 0.6875 pence

1ml of 50ml bottle: 45/50 = 0.9 pence

If no special offer the first bottle is a better value for money.

Since special offer though, you'd be buying;

50ml bottle £45 + another 50ml £22.5 = £67.5 in

which case 1ml would cost;

67.5/100 = 0.675 pence. Hence buying 2x50ml

bottle would be a better value.


8 0
4 years ago
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