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Ann [662]
3 years ago
11

Need help with this help plz

Mathematics
1 answer:
klio [65]3 years ago
5 0
This whole ugly thing is just 6 numbers that are all multiplied.
Here they are:

               (-7)  ·  (x⁶)  ·  (y⁻³)  ·  (5)  ·  (x⁻¹)  ·  (y)  .

To help you see what's going on, I'm going to rearrange them
and write them in a different order.  (You'll remember that when
you multiply, the order of the numbers doesn't matter.)

              (-7)·(5)   ·   (x⁶)·(x⁻¹)   ·   (y⁻³)·(y)  .

I'll bet you can see it already.  It's really starting to fall apart.

Remember that when you have to multiply the same base to
different powers, you just add the powers.

So here's the multiplication:

                 (-7)·(5)   ·   (x⁶)·(x⁻¹)   ·   (y⁻³)·(y)  .
                       |                 |                     | 
                    -35      ·        x⁵        ·          y⁻²

                             -35 x⁵ y⁻²

         or you could write it as      -35x⁵ / y²   which is the same thing.
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Which equation represents a proportional relationship?
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Answer

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Step-by-step explanation:

between two variables when their ratios are equivalent

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Mr. Hartman, the school librarian, is ordering new keyboards and mice for all of the school's computer labs. Each keyboard costs
mario62 [17]

Answer:

3 * 20s

Step-by-step explanation:

In order to find out how much Mr. Hartman will spend in total we first need to multiply the price of the keyboard and mouse by the number of computers in a single computer station. Once we have these products we add them together. Finally, we multiply this new value by 3 since there are a total of 3 computer stations. If we turn this into an expression it would be the following...

3 * (13.50s + 6.50s)

We can even simplify this by first adding the cost of the keyboard and mouse and then multiplying by s

3 * 20s

6 0
3 years ago
2x-3y=42 solve for y
PtichkaEL [24]

Answer:

y=14+(2/3x)

Step-by-step explanation:

Your main goal is to get Y by itself on one side.

To start subtract 2x from both sides. This will give you -3y=42-2x.

Then you divide both sides by -3 to get Y by itself.

That will leave you with ...

y=14+(2/3x)

(remember the negatives cancel each other out)

5 0
3 years ago
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T: 3(t + 3) + 5(3 + 2t) – 76 = 0
Setler [38]

Answer:

\huge\boxed{\sf t = 4}

Step-by-step explanation:

\sf 3(t+3)+5(3+2t)-76 = 0\\\\Expanding \ Parenthesis\\\\3t + 9 + 15 + 10t -76 = 0\\\\13t + 24 -76 = 0\\\\13t - 52 = 0\\\\Add \ 52 \ to \ both \ sides\\\\13t = 52\\\\Dividing\ both\ sides\ by\ 13\\\\t = 52/13\\\\t = 4\\\\\rule[225]{225}{2}

Hope this helped!

<h3>~AH1807</h3>
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The answer to this is 2000...
hope this helps and HAGD!
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