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PilotLPTM [1.2K]
3 years ago
7

Which expressions are equivalent to 3(-2a-4-)+3a

Mathematics
1 answer:
svetlana [45]3 years ago
6 0

Answer:

−6a−12+3a

Step-by-step explanation:

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A pyramid shaped building is 836 ft tall with a square base that is 156 ft on each side. What is the volume of the​ pyramid?
pishuonlain [190]

Answer:

6781632 ft ^ 3

Step-by-step explanation:

The first thing is to know the formula for the volume of a pyramid:

V = 1/3 * Ab * h

That is, it is one third of the product between the area of the base and the height.

The base area would be:

Ab = l ^ 2

the side equals 156 ft, replacing:

Ab = 156 ^ 2

Ab = 24336 ft ^ 2

now, replacing in the volume formula:

V = 1/3 * 24336 * 836

V = 6781632

Which means that the volume of the pyramid is 6781632 ft ^ 3

4 0
3 years ago
Ms karane orders a total of 350 black, blue and red pens for the school she orders 170 black pens and she orders 120 blue pens.
grin007 [14]

Answer:

170+120+r=350

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
I need a word problem using identity property of addition.
Eduardwww [97]
Sally ate 5 banana's she got 5 more later how much does she have together
5 0
3 years ago
Solve: (x ÷ 4) + 8 = 38
Rainbow [258]
First you have to rewrite the equation:
(x ÷ 4) + 8 = 38

Second you have to write the division as fraction:
(¼x) + 8 = 38

Third you have to take off the unecessary bracket:

¼x + 8 = 38

Fourth multiply 8 and 38 by 4
x + 32 = 152

Fifth step move the constant to the right hand and change the sign.
x = 152 - 32

Then subtract:

x = 120

Hope this helps :))
5 0
2 years ago
O
RSB [31]
他自己是我心目中最重要就是這樣啊。我們都會繼續
6 0
3 years ago
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