Solve the problem. Be sure to make a diagram of the situation with all the given information labeled.
?
How long should an escalator be if it is to make an angle of 29° with the floor and carry people a vertical distance of 22 feet between floors?
?
A. 48 ft
B. 40 ft
C. 55 ft
D. 45 ft
E. 43 ft
Answer: D
Mathematics
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Answer the question.Use the mathematical machine to find the input corresponding to an output of 20.
A. 84 B. 30.5 C. 14.75 D. -12
Mathematics
Evaluate the indicated trigonometric function of the acute angle ?.If ? is an acute angle of a right triangle and if sec ? = 
, then find the value of csc ?.
A. 
B. 
C. 
D. 
Mathematics
Fill in the blank with one of the words or phrases listed below.
is compounded not only on the principal, but also on interest already earned in previous compounding periods.
A. Commission B. Compound interest C. Percent of increase D. Percent of decrease
Mathematics
Add or subtract as indicated. Write the answer in simplest form.
+ 
A. 5z + 2
B. 
C. 
D. 
Mathematics