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Gala2k [10]
3 years ago
5

Simplify each expression by combining like terms 3x^-1 - 10x^-1

Mathematics
1 answer:
Dmitry_Shevchenko [17]3 years ago
7 0

Answer:

-7/x

Step-by-step explanation:

first, you combine the terms together to get -7x^-1. you cant have negative exponents in the numerator so you move the x^-1 to the denominator. once it move its becomes positive then.

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What is the surface area of the rectangular prism below?
iragen [17]

Answer:

The correct answer is option C.  490 units ²

Step-by-step explanation:

Area of cuboid = 2(lb + bh + lh)

From the figure we can see that a rectangular prism.

<u>To find the surface area of prism</u>

Here l = 14 units

b = 7 units and h = 7 units

Surface area = 2((14 * 7) + (7 * 7) + (14 * 7))

= 490 units ²

3 0
3 years ago
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Change your money from dollars to british pounds.you got 560 pounds for 800 dollars.how many pounds will you get for 300 dollars
Anettt [7]
You do a proportion so 560x300=168,000 so then you take 168,000 and divide by 800 so the answer is 210 you would have 210 British pounds for 300 dollars
7 0
3 years ago
How you divided numbers
german

Answer:

Step-by-step explanation:

It really depend what number, or what type of number you are multiplying, it's kind of like multiplication you're just doing it backwards. Say that you were trying to divide 20 by 5 you think in your head OK five times what equals 20 and your answer would be four because 5×4 is 20 that's the easiest way to think of it that did not help you with your question tell me in the comments and I will find a better way to explain it.

7 0
3 years ago
What are the names to these quadrilaterals ​
olga_2 [115]

Answer:

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Step-by-step explanation:

4 0
2 years ago
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For each of the equations below, solve for y in terms of x. !<br> a. 2x – 3y = 12
ira [324]

Answer:

\large\boxed{y=\dfrac{2}{3}x-4}

Step-by-step explanation:

2x-3y=12\qquad\text{subtract}\ 2x\ \text{from both sides}\\\\2x-2x-3y=12-2x\\\\-3y=12-2x\qquad\text{divide both sides by (-3)}\\\\\dfrac{-3y}{-3}=\dfrac{12}{-3}+\dfrac{-2x}{-3}\\\\y=-4+\dfrac{2}{3}x

7 0
3 years ago
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