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2 years ago

Match the following items by evaluating the expression for x = -7. x-2 x-1 x0 x1 x2

Mathematics

1 answer:

frosja888 [35]2 years ago

7 0

Answer:

${x}^{ - 2} = \frac{1}{ {x}^{2} } \: \: –> {7}^{ - 2} = \frac{1}{ {7}^{2} } = \frac{ 1}{49} \\ \\ {x}^{ - 1} = \frac{1}{ {x}^{1} } \: –> {7}^{ - 1} = \frac{1}{ {7}^{1} } = \frac{1}{7} \\ \\ {x}^{0} –> {7}^{0} = 1 \\ \\ {x}^{1} –> {7}^{1} = 7 \\ \\ {x}^{2} –> {7}^{2} = 49$

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The unit rate is -1/3.

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Its equation looks like this: y = kx ; where k stands for the constant ratio.

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3 years ago

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A national manufacturer of unattached garages discovered thatthe distribution of the lengths of time it takes two constructionwo

statuscvo [17]

Answer:

D. 68.00%

Step-by-step explanation:

Population mean time (μ) = 32 hours

Standard deviation (σ) = 2 hours

Assuming a normal distribution, for any given number of hours 'X', the z-score is determined by:

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For X=30

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For a z-score of -1, 'X' corresponds to the 15.87-th percentile of a normal distribution.

For X=34

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3 years ago

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V = whl

where w is the width, h is the height, and l is the length

V = (18)(10)(8)

V = 1440 in³

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d = 46.65 lbs / 1440 in³

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V = πr²h

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