1 year ago

What is the value of a?

Mathematics

1 answer:

emmasim [6.3K]1 year ago

8 0

Answer:

62 i think

Step-by-step explanation:

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Step-by-step explanation:

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2 years ago

A photograph has a length that is 2 inches longer than its width, x. So its area is given by the expression x(x + 2) square inch

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2 years ago

The four cities on the map below form a square. About how many miles is the most direct route from Washington to Springfield?

natali 33 [55]

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2 years ago

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. Compute the required sample size given the required confidence in the sample results is 99.74% (Z score of 3). The level of al

Shtirlitz [24]

Answer:

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Step-by-step explanation:

To determine the sample size for a proportion, the margin of error formula is used to determine this:

$E=Z_{\frac{\alpha}{2} }*\sqrt{\frac{\hat p \hat q}{{n} }$

$n=\hat p \hat q*(\frac{Z_{\frac{\alpha}{2} }}{E} )^2$

Where p is the proportion, E is the margin of error, n is the sample size, q = 1 - p, $Z_\frac{\alpha }{2}$ is the z score.

Since the proportion is not known, the sample size needed to guarantee the confidence interval and error is at p = 0.5 and q = 1 - p = 1 - 0.5 = 0.5

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2 years ago

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Your Answer would be C: $37.95

Step-by-step explanation:

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