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3 years ago

If s = 1 over 4 unit and A = 80s2, what is the value of A, in square units?

Mathematics

1 answer:

MissTica3 years ago

4 0

Assuming that you mean s = 1/4.
A = 80s^2
A = 80(1/4)^2
A = 80(1/16)
A = 5 square units.

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What is the answer to this question

Lesechka [4]

Remark

There's a lot you don't know here. Are DE and GF parallel? Is B a right angle? You can't assume that it is. The safest way to proceed is to give x in terms of 58 and B. You might get an answer that gives you something like 32 but I don't think you can say that unless you are told somewhere that ABC is a right angle triangle with the right angle at B.

So what to do.

<BAC = 58o That's because <BAC = <IAK They vertically opposite.

<ABC + <BAC + <ACB = 180o All triangles have 180o

<ACB = 180 - 58 - <ABC Solve for an unknown angle of a triangle.

<ACB = 122 - <ABC

x = <ACB Vertically opposite angles.

x = 122 - <ABC Answer It's 32 if ABC is a right angle.

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Answer:

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2 years ago

Read 2 more answers

Suppose that the sitting back-to-knee length for a group of adults has a normal distribution with a mean of mu equals 24.4 in.

solong [7]

Answer:

$P(X \geq 26.6) = 0.0336$ , which is greater than 0.01. So a back-to-knee length of 26.6 in. is not significantly high.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 24.4, \sigma = 1.2$