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Free_Kalibri [48]
2 years ago
12

The area of a square is 64 cm . Explain why it cannot have a side length of -8 cm.​

Mathematics
1 answer:
Step2247 [10]2 years ago
7 0

Answer:

because it is not a negitive number if you divide it and get a negitive number it still isnt -8

Step-by-step explanation:

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Joe buys groceries for his grandfather the groceries cost $42 plus 5% tax joe wants to know the total cost of the groceries incl
vekshin1
<h3>Answer: $44.10</h3>

====================================================

Work Shown:

5% = 5/100 = 0.05

5% of 42 = 0.05*42 = 2.10

tax = $2.10

total cost including tax = $42 + $2.10 = $44.10

----------

An alternative is to multiply 42 by 1.05 to get

1.05*42 = 44.10

We get the same answer. The 1.05 refers to 1 + 0.05 where the "1" is 100% and the 0.05 is 5%, so the two combine to 105%, meaning the total cost is 105% of the cost before tax is considered.

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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