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3 years ago

What is the value of m squared minus 2 m n + n squared for m = negative 2 and n = 4?

Mathematics

1 answer:

almond37 [142]3 years ago

8 0

Answer:

What is the value of m squared minus 2 m n + n squared for m = negative 2 and n = 4? -36. -4.

Step-by-step explanation:

hope this helps

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Which scenario is modeled by the equation (x)(0.6) = $86.46?

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Answer: A picnic table is on sale for 60 percent off. The original price of the picnic table is x, $144.10.

Step-by-step explanation:

Given equation: $(x)(0.6)=\$86.46$

To find x, divide 0.6 on both sides, we get

$x=\frac{\$86.46}{0.6}\\\Rightarrow\ x=\frac{\$864.6}{6}\\\Rightarrow\ x=\$144.10$

Also $0.6=0.6\times100=60\%$

Thus, $60\%\ of\ \$144.10=\$86.46$

So the best scenario modeled by the above equation is

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4 years ago

Read 2 more answers

What is 6% of 50?????????

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3 years ago

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Please include work! :)

UNO [17]

Answer:

m = 13.

Step-by-step explanation:

Recall that adding logarithmic equations, (ex: log a + log b) is the same as log (a·b). Therefore:

log 12 + log 5 = log (4m + 8)

log (12·5) = log (4m + 8)

log (60) = log (4m + 8) **Ignore 'Log' to solve for 'm'

60 = 4m + 8 **Subtract both sides by 8

52 = 4m **Divide both sides by 4

m = 13.

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3 years ago