Solve the system by the elimination method. 8x - 7y = 2-24x + 21y = -4

A.
B. {(8, 2)}
C. ?
D. {(3, 2)}


Answer: C

Mathematics

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Evaluate the polynomial for the given values of the variables.Evaluate -x2y + 4xy2 - 5 for x = 4 and y = -4.

A. 315 B. 325 C. 197 D. 635

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Estimate the limit numerically. ? ?

A.
B.
C. 0
D.
E. 1

Mathematics

Rewrite with rational exponents.

A. 61/5
B.
C. -51/6
D. 51/6

Mathematics

Factor out the greatest common factor.64m8 + 40m6 + 80m2

A. no common factor B. m2(64m6 + 40m4 + 80) C. 8(8m8 + 5m6 + 10m2) D. 8m2(8m6 + 5m4 + 10)

Mathematics