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3 years ago

How do i solve using trigonometry? thanks a ton :)

Mathematics

2 answers:

Alex777 [14]3 years ago

8 0

cause sin (×) = 27/32
so to make x alone take the inverse of sin
hence

sin^-1(27/32)=x

i think you can find the sin^-1 on the calculator

gogolik [260]3 years ago

6 0

He is right. Anyways, on your calculator press "2nd" then press sin and it should now say sin^-1 then put in 27/32 and close the parenthesis. That'll give you the andwer

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4 years ago

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Answer:

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Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

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Now, we have to find z in the Z-table as such z has a p-value of $1 - \alpha$ .

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This means that $n = 10$ .

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The upper end of the interval is the sample mean of $\overline{x}$ added to M.

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