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jeka94
3 years ago
7

Solve negative 7 over 3, the whole multiplied by x minus 3 equals negative 52.

Mathematics
2 answers:
iren2701 [21]3 years ago
7 0

Answer:

x=21

Step-by-step explanation:

xz_007 [3.2K]3 years ago
6 0
First write out the equation
\frac{-7}{3} x-3=-52
Add three to both sides to cancel out
\frac{-7}{3} x=-49
Multiply both sides by the reciprocal of the fraction being multiplied by x
( \frac{-3}{7} ) \frac{-7}{3} x=-49( \frac{-3}{7} )
Cancel out the fractions and you're left with positive 21
x=21
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Answer:

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Step-by-step explanation:

Normal Probability Distribution

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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.

The mean of a certain set of measurements is 27 with a standard deviation of 14.

This means that \mu = 27, \sigma = 14

The proportion of measurements that is less  than 13 is

This is the p-value of Z when X = 13, so:

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

Z = \frac{13 - 27}{14}

Z = -1

Z = -1 has a p-value of 0.16, and thus, the probability is: Exactly 16%.

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Step-by-step explanation:

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(W2-1)xW

Step-by-step explanation:

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