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tresset_1 [31]
2 years ago
11

Can someone help me?

Mathematics
1 answer:
nirvana33 [79]2 years ago
6 0
So you can do number one is d
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Step-by-step explanation:

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Use three different values of n to demonstrate that 2n + 3n is equivalent to 5n.
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Come help a sister out on 2 geometry questions please
PSYCHO15rus [73]
1- question

Data:
width = 6 cm
length = 5 cm
height = 8 cm


<span>First we will find the area of ​​the base that is square, we have:
</span>
Ab = 6 * 5 
Ab = 30 cm²

<span>Now we will calculate the volume of a square pyramid, we have:
</span>Formula: V =  \frac{1}{3}  A_{b}  *h

Solving:
V = \frac{1}{3} A_{b} *h
V =  \frac{1}{3}*30*8
V =  \frac{240}{3}
\boxed{\boxed{V = 80\:cm^3}}\end{array}}\qquad\quad\checkmark

Answer:
D) 80 cm³

2- question:

Data:
width = 7 in
length = 7 in
height = 9 in


First we will find the area of ​​the base that is square, we have:

Ab = 7 * 7 
Ab = 49 in²

Now we will calculate the volume of a square pyramid, we have:
Formula: V = \frac{1}{3} A_{b} *h

Solving:
V = \frac{1}{3} A_{b} *h
V = \frac{1}{3}*49*9
V = \frac{441}{3}
\boxed{\boxed{V = 147\:in^3}}\end{array}}\qquad\quad\checkmark

Answer: 
C) 147 in³

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3 years ago
Which of the following sets is closed under division?
Kazeer [188]
For the answer to the question on which of the following sets is closed under division. I think the answer to this question is o<span>nly non-zero rational numbers are closed under division.
So the answer would be the fourth one.
I hope my answer helped you. Have a nice day!</span>
6 0
2 years ago
Read 2 more answers
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