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kvasek [131]
3 years ago
10

Can someone please help me with this equation, ill give brainest to the person who is correct.

Mathematics
1 answer:
ohaa [14]3 years ago
5 0
5x means that 5 should be multiplied by the value of x
Every time a variable is touching a number it means it’s multiplying

5x + 8 = ?

If x = 9, you would multiply 5 and 9 which is 45. You then add 45 and 8

45 + 8 = 53

Therefore 5x + 8 = 53

Hope this helps you! :)


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A rectangular prism and a triangular prism each have a volume of 210 cubic meters. find possible dimensions for each prism.
Evgesh-ka [11]
An interesting question! Let's take a look at the rectangular prism first.

[Rectangular Prism]
We know that the formula for the volume of a rectangular prism is:
volume = length * width * height

or more simply
V = L*W*H

All we know is that the volume is 210 cubic meters. We can choose whatever we want for the dimensions to force it to work! We're free to do what we want!
210 = L*W*H

I like 10, that's a nice number. Let's make L = 10.
210 = 10*W*H

Hmm... but now I need W*H to be 21 (think about it, make sure you get why I say that). Well, how about W = 7 and H = 3? That should work.
210 = 10*7*3

It checks! Possible dimensions for the rectangular prism are L = 10 meters, W = 7 meters, and H = 3 meters. There are many other choices of course, but this is a possible choice.

[Triangular Prism]
Same idea, different formula. For a triangular prism, the volume is
V = 1/2 * L*W*H

But the volume is still 210 cubic meters, so we just have
210 = 1/2 * L*W*H

So, one of our dimensions is going to be cut in half. Why don't we just double L to make up for it? 
210 = 1/2*(20)*W*H

And we can leave W and H the same
210 = 1/2*20*7*3

Check that it works! A possible choice is L = 20 meters, W = 7 meters and H = 3 meters.

We're done!

5 0
3 years ago
Simplify the following monomials pls
velikii [3]

Answer:

1.) a^4b

2.) p^3q^4

3.) 2n^42n^4

4.) 5xy^2z

5.) 2a^3b^5

I hope this helps:

4 0
2 years ago
I need help..................
Viktor [21]

Answer:

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Step-by-step explanation:

7 0
3 years ago
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kirill [66]

Answer:

Cos A = Adjacent / hypochondrium

Cos A= 9/ 41

4 0
2 years ago
Is this a true or false solution? y = 12x; (3,32)
Elenna [48]

Substitute the x-value and see if you get the corresponding y-value. The corresponding y-value an x-value of 3 in this equation should be

y = 12(3)

y = 36

Since the coordinate (3,32) does not represent that, it is a false solution

4 0
3 years ago
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