Express the sum or difference as a product.sin 
+ sin 
A. 2 sin 
sin x
B. 2 sin 
cos x
C. 2 cos 7x sin x
D. 2 sin 7x
Answer: B
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Perform the indicated operations. Write the result using only positive exponents. Assume all variables represent nonzero real numbers.
A. 
B. 
C. 6x6
D. 0
Solve the problem that involves probabilities with dependent events. There are 30 chocolates in a box, all identically shaped. There are 5 filled with nuts, 16 with caramel, and 9 are solid chocolate. You randomly select one piece, eat it, and then select a second piece. Find the probability of selecting 2 solid chocolates.
A. 
B. 
C. 
D. 
Find the axis of symmetry of the given function.f(x) = -3x2 + 6x
A. x = - 
B. x = -3
C. x = - 
D. x = 1
Write a numerical expression for the phrase and simplify it.The product of - 
and 
, divided by - 
.
A. 
; 
B. 
; 
C. 
; 
D. 
; 