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2 years ago

Find the value of x to the nearest tenth 10 and 35

Mathematics

1 answer:

Verdich [7]2 years ago

3 0

We can use the tangent rule for this problem because the opposite x is unknown and adjacent side 10 is knwon. Since,

$tan \theta= \frac{Opposite side}{Adjacent side}$

$tan 35=\frac{x}{10}$

$0.474=\frac{x}{10}$ Since tan 35°=0.474

$0.474*10=\frac{x}{10}*10$ Multiplying each sides by 10.

4.74=x

x=4.7 (Rounded to nearest tenth)

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Answer:

We can claim with 95% confidence that the proportion of executives that prefer trucks is between 19.2% and 32.8%.

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We have a sample of executives, of size n=160, and the proportion that prefer trucks is 26%.

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The 95% confidence interval for the population proportion is (0.192, 0.328).

We can claim with 95% confidence that the proportion of executives that prefer trucks is between 19.2% and 32.8%.

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