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3 years ago

YALL plz help…. I’d don’t get this at all

Mathematics

2 answers:

lidiya [134]3 years ago

4 0

The answer according to me would be B (-a) + b

Because when you solve it. It would turn into a - b

tigry1 [53]3 years ago

3 0

Answer:

the correct answer is b

Step-by-step explanation:

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Take the numbers and divide them i believe

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3 years ago

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Find csc 0, sin 0, and cot 0, where is the angle shown in the figure. Give exact values, not decimals approximations. (LISTING B

dexar [7]

Answer:

sup

Step-by-step explanation:

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3 years ago

A survey found that women's heights are normally distributed with mean 63.2 in. and standard deviation 2.4 in. The survey also

Effectus [21]

Answer: 99.51%

Step-by-step explanation:

Given : A survey found that women's heights are normally distributed.

Population mean : $\mu =63.2 \text{ inches}$

Standard deviation: $\sigma= 2.4\text{ inches}$

Minimum height = 4ft. 9 in.= $4\times12+9\text{ in.}=57\text{ in.}$

Maximum height = 6ft. 2 in.= $6\times12+2\text{ in.}=74\text{ in.}$

Let x be the random variable that represent the women's height.

z-score : $z=\dfrac{x-\mu}{\sigma}$

For x=57, we have

$z=\dfrac{57-63.2}{2.4}\approx-2.58$

For x=74, we have

$z=\dfrac{74-63.2}{2.4}\approx4.5$

Now, by using the standard normal distribution table, we have

The probability of women meeting the height requirement :-

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Hence, the percentage of women meeting the height requirement = 99.51%

8 0

3 years ago

There are many campers at Camp Lots of Fun. This morning, 4 kids went home sick. Of the remaining campers, 18 kids went hiking a

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Answer:

Step-by-step explanation:

You would add 41 + 18 + 4, which obviously gets you 63. Hope this helped!

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3 years ago

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Step-by-step explanation:

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3 years ago