Complete the identity.The expression 
+ 
is to be the left hand side of an equation that is an identity. Which one of the following four expressions can be used as the right hand side of the equation to complete the identity?
A. 3 sec ?
B. 1 - cos ?
C. 2 sec2 ?
D. tan2 ?
Answer: C
Mathematics
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Write interval notation for the graph.
A. (-?, 1) B. (-?, 1] C. (1, -?) D. [1, ?)
Mathematics
Perform the requested operation on the given function.f(x) = -4
, g(x) = -7
Find (f + g)(x)
A. -11
B. -11x - 11
C. -11
D. -11
Mathematics
Tell whether permutations or combinations are being described.4 musicians are selected to form a band.
A. Permutations B. Combinations
Mathematics
Find the area of the rhombus shown if WY = 30 cm.
Mathematics