Complete the identity.cot x ? tan x = ?
A. 0
B. sin x
C. 1
D. -1
Answer: C
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Solve the problem.How many different three-digit numbers can be written using digits from the set {5, 6, 7, 8, 9} without any repeating digits?
A. 10 B. 60 C. 120 D. 20
Simplify the expression. Assume that all variables are positive and write your answer in radical notation.
? 
A. x
B. 
C. 
D. x
A newspaper article discussing whether Social Security could be cut offered the information shown in figure. Use the information in these graphs to answer the question.
There seems to be an error in one of the three line graphs. What is it?
What will be an ideal response?
Calculate the Riemann Sum for the integral using n = 10.
?
?
Round the answer to four decimal places.
?
A. 4,257.7370 B. 5,335.1538 C. 5,261.3439 D. 5,187.5341 E. 42,577.3704