2 years ago

Are 27 49 57 63 composite numbers

Mathematics

2 answers:

marissa [1.9K]2 years ago

8 0

Yes. If you need help explaining why, contact me.

Helen [10]2 years ago

7 0

Yes they are
Composite numbers <span />

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drek231 [11]

Answer:

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2 years ago

If the ratio of children to adults is 2:9 and there are 70 children at an arts festival, how many adults are in attendance?

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If 70 children is 2 parts, one part is 35

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2 years ago

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katrin [286]

Answer:

$\frac{\sqrt{15} }{2}$

Step-by-step explanation:

$\sqrt{f(\frac{3}{2} )$ , substitute $\frac{3}{2}$ to x

$f(\frac{3}{2} )=4(\frac{3}{2} )-(\frac{3}{2} )^2$ = $\frac{15}{4}$ or 3.75

$\sqrt{f(\frac{3}{2} )$ = $\sqrt{3.75}$ = $\frac{\sqrt{15} }{2}$

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1 year ago

What is statistical power and how would you calculate it?

Natasha_Volkova [10]

Answer:

The statistical power of a hypothesis test is the probability of detecting an effect, if there is a true effect present to detect. Power can be calculated and reported for a completed experiment to comment on the confidence one might have in the conclusions drawn from the results of the study.

I hope it's helpful!

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2 years ago

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