Question 30 Answer and Explanation _ACT April 2016 Form 73E Math Section

Question 30 Answer and Explanation _ACT April 2016 Form 73E Math Section

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30. The base of an escalator in a store is 26 meters long and has a vertical lift of 10 meters as shown below. Which of the following expressions is closest to the angle of inclination between the base of the escalator and the horizontal floor?

F. ${sin}^{-1}\left({\frac{10}{26}}\right)$

G. ${sin}^{-1}\left({\frac{26}{10}}\right)$

H. ${cos}^{-1}\left({\frac{10}{26}}\right)$

J. ${tan}^{-1}\left({\frac{10}{26}}\right)$

K. ${tan}^{-1}\left({\frac{26}{10}}\right)$

Answer and Explanation

Your Answer is

Correct Answer is F

Explanation