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

Mathematics

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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)

Mathematics

Convert the units.768 ounces =  pounds

A. 192 B. 48 C. 49 D. 76

Mathematics

Solve the logarithmic equation.log 3x = log 2 + log (x + 4)

A. -8
B. 3
C. 8
D.

Mathematics

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.

Mathematics