Multiply.(7z + 9)2
A. 7z2 + 126z + 81
B. 49z2 + 81
C. 49z2 + 126z + 81
D. 7z2 + 81
Answer: C
Mathematics
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Use the given graph of f(x) = ax2 + bx + c to solve the specified inequality.f(x) < 0
A. -3 < x < 3 B. x < -3 or x > 3 C. no solution D. x < -3
Mathematics
Decide where the first digit in the quotient would be located. Then without finishing the division, determine which of the three choices is the correct answer.
A. 1762 R 175 B. 17,620 C. 176 R 175
Mathematics
Solve the equation by the method of your choice. Simplify solutions, if possible.4x2 - 35x - 9 = 0
A. 
B. 
C. {-4, 9}
D. 
Mathematics
Collect like terms.-15y - 6x - 9x
A. -15y - 15x B. -15y - 3x C. -15y + 3x D. -30xy
Mathematics