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3 years ago

Cotθ= tan30° find theta

Mathematics

1 answer:

scoundrel [369]3 years ago

7 0

Answer:

Step-by-step explanation:

Cot is the same as 1/tan so:

$1/tan(theta) = tan(30)$

By rearranging the equation, we get:

$1/tan(30) = tan(theta)$

By taking the inverse tan, we get:

$theta = tan^-1 (1/tan(30)) =60$

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irina1246 [14]

Answer:

We conclude that commute time in her city is less than the amount reported by the survey which is 25.4 minutes.

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Sample size, n = 15

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Sample standard deviation, s = 5.3 minutes

First, we design the null and the alternate hypothesis

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We use one-tailed t(left) test to perform this hypothesis.

Formula:

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