2 years ago

CAN ANYONE HELP WITH THESE? BRAINLIEST ANS

Mathematics

1 answer:

Sonbull [250]2 years ago

3 0

The answer to the first one is a

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What is (-8)to the power of 2 equal??

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(-8)^2
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64

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Just to make sure...are these correct?

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Evaluate 4a + 7b + 3a − 2b for a = 5 and b = −3.

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Step-by-step explanation:

$4a+7b+3a-2b\qquad\text{combine like terms}\\\\=(4a+3a)+(7b-2b)\\\\=7a+5b\qquad\text{put a = 5 and b = -3 to the expression}\\\\7(5)+5(-3)=35-15=20$

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2 years ago

A man buys a washing machine whose price VAT (value added Tax ) is Birr 175. lts VAT is charged at 15 % ,how much did the man ac

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Answer:

Birr 1341.67

Step-by-step explanation:

The tax is 15% of the price (p), so we have ...

0.15p = 175

p = 175/0.15 = 1166.67

When the tax is added, the total comes to ...

1166.67 +175 = 1341.67

The man actually paid Birr 1341.67.

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