The actual mechanical advantage of a machine

Mathematics

2 answers:

RoseWind [281]3 years ago

7 0

1. D
2.B
3.C
4.B
5.C

Hope this helps

Vikentia [17]3 years ago

4 0

The answer is D just took the test.

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Answer:

The Value of c can be found using the formula 3c = 8.37. Each Baseball costs $2.79

Step-by-step explanation:

3c=8.37 divide 3c and 8.37 by 3 and it will tell you that c = 2.79.

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2 years ago

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3 years ago

The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with mean of 1262 and a s

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Answer:

a) 1186

b) Between 1031 and 1493.

c) 160

Step-by-step explanation:

Normal Probability Distribution

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score 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 p-value, we get the probability that the value of the measure is greater than X.

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This means that $\mu = 1262, \sigma = 118$