Find the additive inverse of the number.21

A. 0
B. 21
C.
D. -21


Answer: D

Mathematics

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Completely factor the difference of two squares. ? ?

A.
B.
C.
D.
E.

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Find the perimeter of the specified triangle. Assume the triangles are similar.Find the perimeter of the triangle on the right.

A. 237.5 m B. 242.5 m C. 170.3 m D. 189.5 m

Mathematics

Solve the problem.A linear programming problem has 35 decision variables x1, ..., x35 and50 problem constraints. How many rows are there in the table of basic solutions of the associated e-system?

A. 8.96 × 1025 B. 8.96 × 1013 C. 2.25 × 1023 D. 8.96 × 1023

Mathematics

Locate any intercepts of the function.

A. (0, -2)
B. (0, 8), (4, 0), (, 0)
C. (0, 8)
D. (0, -2), (4, 0), (, 0)

Mathematics