Express the repeated multiplication in exponential notation.7 ? 7
A. 2 ? 7
B. 73
C. 27
D. 72
Answer: D
Mathematics
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Solve for t.100e4t = 900
A. 
B. 
C. 
D. ln 
Mathematics
Find the sum of the given infinite geometric series.40 - 8 + 1.6 - . . .
A. 
B. 
C. 50
D. 
Mathematics
Write the expression in terms of sines and/or cosines, and then simplify.sec2 x(1 + cos2 x)
A. 
B. sin x
C. 
D. 
Mathematics
Find an equation for the line with the given properties.Slope undefined; containing the point 
A. x = 7
B. y = - 
C. y = 7
D. x = - 
Mathematics