Find a so that the statement is true.
A. 0
B. 5
C. 4
D. 7
E. 3
Answer: B
Mathematics
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Choose the expression which is equivalent to the given expression.
A. cot 5° B. cos 5° C. sin 5° D. tan 5°
Mathematics
The percentage, P, of students who recall the important features of a lecture after x days is given by the formula 
. Use this formula and the change-of-base formula to find the percentage, P, of a lecture retained after the given number of days. Round your answer to the nearest whole percent.3 days
A. 62% B. 49% C. 47% D. 52%
Mathematics
Find the reciprocal.11
A. 11
B. 1
C. 
D. 
Mathematics
The graph of a function f is given. On the same axes, sketch the graph of f-1. 
A. 
B. 
Mathematics