3 years ago

Could you guys help in this

Mathematics

1 answer:

mixer [17]3 years ago

7 0

Answer:

Go to wolfram alpha.com i think that will help you

Step-by-step explanation:

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A solid is generated by rotating about the x-axis the region under the curve y=f(x) where f is a positive function and x bigger

Soloha48 [4]

Answer:

The answer is Y=F(X) = Square root of (Zx)/ π

Step-by-step explanation:

Please see attachment

5 0

3 years ago

A grade has 81 girls and 72 boys. The grade is spilt into groups that have the same ratio of boys to girls as the whole grade. H

MariettaO [177]

There are 81 girls to every 72 boys in total, which can be represented by 81/72, which put into decimal form, is 1.125. If you then take the number of boys in the group, 16, and multiply it by this number (because the problem states that the ratio is constant) you can find the number of girls in the group.

16*1.125=18

So there are 18 girls in a group with 16 boys.

4 0

4 years ago

Read 2 more answers

The heights of flowering cherry trees are normally distributed with a mean of 11.5 feet, and a standard deviation of 1.7 ft. fin

Fittoniya [83]

Mean (μ) = 11.5 feet

Standard deviation (σ) = 1.7 feet

First we need to find the z-score for less than 13.5 feet.

The formula of z-score is : z = (X - μ)/σ

Here X= 13.5, so z = $\frac{(13.5-11.5)}{1.7}$