Multiply, then simplify the product. Assume that all variables represent positive real numbers.(
+ 1)(
- 1)
A. 9
B. 9 - 2
C. 11
D. 9 + 2
Answer: A
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Sketch the graph of the equation. Identify the vertex and the intercepts.y = - x2 - 4x - 4
A. Vertex: (2, 0);
x-intercept: (2, 0);
y-intercept: (0, -4)
B. Vertex: (2, 0);
x-intercept: (2, 0);
y-intercept: (0, 4)
C. Vertex: (-2, 0);
x-intercept: (-2, 0);
y-intercept: (0, 4)
D. Vertex: (-2, 0);
x-intercept: (-2, 0);
y-intercept: (0, -4)
Convert the units.768 ounces = 
pounds
A. 192 B. 48 C. 49 D. 76
Solve the logarithmic equation.log 3x = log 2 + log (x + 4)
A. -8
B. 3
C. 8
D. 
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.