Plz help me !!!!!!!!

Mathematics

2 answers:

vazorg [7]4 years ago

8 0

You factor the numerator and denominator and cancel the common factors. So maybe that should help you

frozen [14]4 years ago

3 0

In the problem, you can see that it’s a -17.8. Yet, in step two, there is no negative in front of the number. He should’ve made that a negative because the answer will not be the same. Instead, it would be -106.8.

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63 12/60 simplified

Andreas93 [3]

Your question is not clear, if you are asking: what is $63 \frac{12}{60}$ simplified? Then the answer is $63 \frac{1}{5}$ or $63.2$ .

If 63 is just the question number and you are asking, what is $\frac{12}{60}$ simplified. Then the answer is $\frac{1}{5}$ or $0.2$

You get this answer by finding the highest number that both the numerator and denominator are divisible by, and diving both numbers by that:

$\frac{12}{60} \div \frac{12}{12} = \frac{12 \div 12}{ 60 \div 12} = \frac{1}{5} = 0.2$

7 0

3 years ago

Read 2 more answers

The heights of male are normally distributed with mean of 170 cm and standard deviation

Bumek [7]

Answer:

0.0918 = 9.18% probability that a randomly selected male has a height > 180 cm.

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.

Mean of 170cm and standard deviation of 7.5 cm.

This means that $\mu = 170, \sigma = 7.5$