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tino4ka555 [31]
3 years ago
6

May someone please help me with this :)

Mathematics
1 answer:
Sever21 [200]3 years ago
8 0

Answer:

866.25 cubic centimeters (cm^3)

Step-by-step explanation:

The formula for a triangular prism is the area of the base (the triangle part) multiplied by the height.

The area of a triangle = 1/2(base)(height)

The base of your triangle is 10cm, the height is 8.25.

a = (1/2)(10)(8.25)

a = 41.25 centimeters squared

Now we multiply that area (41.25) by the height of 21cm

21 x 41.25 = 866.25 and it's centimeters cubed (m^3) because it's volume, not area.

Please let me know if you have questions.

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Seven ninths minus one third
erica [24]
An easy way to do questions like these is by converting the fractions into decimals, at least I used to find it easier by doing so when I first encountered them. 
So,
7/9 as a decimal is 0.77
1/3 as a decimal is 0.33

You can do;

0.77 - 0.33

You are left with;

0.44

Which in it's simplest fraction form is;

11/25.

Your answer is 11/25.

I hope this helped, if you need help with understanding how to conver then do let me know! ;3

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3 years ago
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Answer:

Circular!

Step-by-step explanation:

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What is slope intercept
Aliun [14]

Answer:

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Step-by-step explanation:

3 0
3 years ago
What is 3(2x+1)+2(x+3) Help please x
katrin [286]

Answer:

8x + 9

Step-by-step explanation:

Treat the question as 2 separate brackets

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Then expand 2(x + 3) :

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Now add the two answers together and simplify :

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hope this helps :)

8 0
3 years ago
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Naily [24]
200/10
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4 years ago
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