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TEA [102]
4 years ago
9

Which expression is equivalent to 5(a+b)

Mathematics
1 answer:
AnnZ [28]4 years ago
4 0

Answer:

5a+5b

Step-by-step explanation:

Multiply each variable in the parenthesis by the number outside.

Hope this helps.

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A 12-m ladder is leaning against a wall.
Len [333]

Answer:

Step-by-step explanation:

Use Pythagorean's Theorem for a right triangle. Your best bet when learning/visualizing word problems is to draw a picture, then learn how to visualize in your head over time.

3^2+x^2=12^2\\9+x^2=144\\x=\sqrt{135}

The radical can be further simplified because 135 is the product of 9 and 15. 9 has a perfect root of 3.

x=3\sqrt{15} meters or 11.62 meters

7 0
3 years ago
The system of equations below has exactly one (x, y) pair for its solution.
motikmotik

Answer:

7.9

Step-by-step explanation:

because you don't make sentence

7 0
3 years ago
I NEED HELP PLEASE, THANKS! :)
cluponka [151]

Answer:

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Step-by-step explanation:

3 0
4 years ago
5p coins weigh approximately 3 grams
Ymorist [56]

Answer:

0.3kg(300g)

Step-by-step explanation:

£1=100p

£5=500p

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500p=x

x=500*3/5

x=300g

8 0
2 years ago
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How many solutions are there to the equation below?
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C is the answer

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