Solve the system by elimination. 8x + 64 = 4y-6x + 2y = 40

A. {(-4, 8)}
B. {(-4, 9)}
C. {(-5, 9)}
D. ?


Answer: A

Mathematics

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Graph. Be sure to label the vertex.y = -3x2

A.

B.

C.

D.

Mathematics

Evaluate the expression.(-7)2

A. -14 B. -49 C. 14 D. 49

Mathematics

Solve the problem.A committee is set up to vote yes or no on a logo design. The committee is composed of one person whose favorite color is (A)zure, five people whose favorite color is (B)lack, seven people whose favorite color is (C)herry, and nine people whose favorite color is (G)reen. At least sixteen votes are required for a decision, and the committee members will vote in blocs according to their favorite colors. List all winning coalitions, and identify those blocs that are critical to each of the winning coalitions.

A. {A, B, C, G}, {A, C, G}, {B, C, G}, {C, G} ; C and G are critical to all winning coalitions. B. {A, C, G}, {B, C, G}, {C, G} ; C and G are critical to all winning coalitions. C. {A, B, C, G}, {A, C, G}, {B, C, G}, {C, G} ; B, C, and G are critical to the coalition {A, B, C, G} ; C and G are critical to all other winning coalitions. D. {A, C, G}, {B, C, G}, {C, G} ; G is critical to all winning coalitions.

Mathematics

Rewrite the rational expression using the specified denominator D., D = 49x6y5

A.
B.
C.
D.

Mathematics