Factor out the greatest common factor with a negative coefficient.-42x9y9 - 60x7y6 + 24x5y2
A. -6x5y2(7x4y7 - 10x2y4 + 4)
B. -6(7x9y9 - 10x7y6 - 4x5y2)
C. -6x5y2(7x4y7 + 10x2y4 - 4)
D. -6x5(7x4y9 - 10x2y6 + 4y2)
Answer: C
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Solve the following system by any appropriate method. If there is no real number solution, so state.y - 12x = 012x2 + y2 = 156
A. (1, 12) B. (-1, -12) C. (-1, -12), (1, 12), (-1, 12), (1, -12) D. (-1, -12), (1, 12)
Solve.David recently switched to a long distance phone company which charges a monthly fee of $7.95 plus $0.06 per minute. Find a linear function that expresses the monthly bill B as a function of minutes used m.
A. B(m) = 0.06m + 7.95 B. B(m) = 7.95m + 0.06 C. B(m) = 8.01m D. B(m) = 0.06m + 7.95m
Use the shortcut for dividing numbers ending in zeros to find the quotient.4000 / 10
A. 140 B. 40 C. 400 D. 0
Add or subtract as indicated. Make sure that your answer is reasonable by estimating first.80.132 + 176.774 + 7.074
A. 327.646 B. 104.8834 C. 191.8612 D. 263.98