3 years ago

Answer these three for me pls guys

Mathematics

1 answer:

Nataliya [291]3 years ago

8 0

11) X= 7, X= -7
(X+7)(X-7)=X^2+7X-7X-49=X^2-49

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Solve the following: - 3 raised to 1 by 5 the whole raised to 4 (3^1/5)^4

Diano4ka-milaya [45]

Answer:

8.30256

Step-by-step explanation:

Step 1: Write out expression

$((-3)^{\frac{1}{5} })^{4(3^{\frac{1}{5} })^4$

Step 2: Use BPEMDAS to evaluate

$(-1.24573)^{4(3^{\frac{1}{5} })^4$

$(-1.24573)^{4(1.24573)^4$

$(-1.24573)^{4(2.40822)$

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And we have our answer!

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3 years ago

What is the percentage decrease if an item has dropped from $115 to $46

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Answer: 60% decrease

Step-by-step explanation:

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3 years ago

The school will not announce a snow day unless there is 10 inches of snow on the ground. If it had already snowed 1.5 inches how

Dennis_Churaev [7]

21 more inches. Hey, you're welcome.

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3 years ago

Find the surface area of the cylinder. Round your answer to the nearest hundredth.

horsena [70]

Answer:

C. 795.45 in^2

Step-by-step explanation:

The formula for the surface area of a cylinder is ...

SA = 2πr^2 +2πrh = 2πr(r +h)

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SA = 2π(6)(6 +15.1) = π(12)(21.1) = 253.2π

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2 years ago