Find (P ? Q)(x).P(x) = x + 10; Q(x) = x - 3
A. x2 + 7x + 30
B. x2 - 7x - 30
C. x2 + 13x + 30
D. x2 + 7x - 30
Answer: D
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Use a tree diagram showing all possible results when a die is rolled twice. List the ways of getting the following result.The second die shows a 3.
A. (3,3) B. (1,3),(3,3),(5,3) C. (1,3),(2,3),(4,3),(5,3),(6,3) D. (1,3),(2,3),(3,3),(4,3),(5,3),(6,3)
Factor.z2 - 144
A. (z + 12)2 B. (z - 12)2 C. z2 - 144 D. (z + 12)(z - 12)
Solve.The pitch of a screw is the distance between threads. With each complete rotation of the screw, it goes in or out a distance equal to its pitch. How far will a screw with a pitch of 
in. go into a piece of wood when it is turned 10 complete rotations clockwise?
A. 
in.
B. 
in.
C. 
in.
D. 
in.
Perform the indicated operations and, if possible, simplify. Recall that multiplications and divisions are performed in order from left to right.
÷ 
? 
A. r - s
B. 
C. r + s
D. 