Use basic identities to simplify the expression.
+ sec ? cos ?
A. sec2?
B. tan2?
C. csc2?
D. 1
Answer: A
Mathematics
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Write the first four terms of the sequence.an = 
A. a1 = 1, a2 = 
, a3 = 
, a4 = 
B. a1 = 5, a2 = 
, a3 = 
, a4 = 
C. a1 = 
, a2 = 
, a3 = 
, a4 = 
D. a1 = 1, a2 = 
, a3 = 
, a4 = 
Mathematics
Find the domain of the logarithmic function.f(x) = ln(-7 - x)
A. (-?, -7) B. (-?, 7) C. (-7, ?) D. (7, ?)
Mathematics
Write the answer to the problem as an algebraic expression.Elizabeth earned 9 dollars a day at her job. Assuming a 5-day work week, how much did she earn in d weeks?
A. 9d dollars B. 45 + d C. 9 + d dollars D. 45d dollars
Mathematics
Solve the equation.(-5x - 5)2 = -10(-5x - 5) - 16
A. 
B. 
C. {-2,-8}
D. 
Mathematics