Find the constant term to be added to the expression to form a perfect square trinomial.x2 + 8x

A. 64
B. 16
C. 0
D. -16


Answer: B

Mathematics

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Sketch the graph of the power function by hand, using a calculator only to evaluate y-values for your chosen x-values. On the same axes, graph y = x2 using a dotted line for comparison. In each case, x ? 0.f(x) = x2.6

A.

B.

C.

D.

Mathematics

Solve the equation by factoring.x2 - x - 56 = 0

A. x = -7 or x = 8 B. x = 8 C. x = -8 or x = 7 D. x = -8

Mathematics

Graph the function. Describe its position relative to the graph of the indicated basic function.f(x) = 1 - 5-x; relative to f(x) = 5x

A. Moved up 1 unit(s);
reflected across, y-axis;
reflected across x-axis;


B. Reflected across y-axis;
reflected across x-axis;
moved up 1 unit(s)


C. Reflected across y-axis;
reflected across x-axis;
moved down 1 unit(s)


D. Moved up 1 unit(s);
reflected across, y-axis;
reflected across x-axis;


Mathematics

Solve the problem.A company makes 3 types of cable. Cable A requires 3 black, 3 white, and 2 red wires. B requires 1 black, 2 white, and 1 red. C requires 2 black, 1 white, and 2 red. The company used 95 black, 100 white and 85 red wires. How many of each type of cable were made?

A. 25 A; 10 B; 20 C B. 53 A; 25 B; 17 C C. 10 A; 17 B; 20 C D. 10 A; 25 B; 20 C

Mathematics