Solve the problem.Determine whether (2, 9, -4) is a solution of the system 2x - 5y - 9z = -5 x + y + z = 7 3x - y + 5z = 35.
A. Yes
B. No
Answer: B
Mathematics
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Find the extreme values of the function subject to the given constraint.
A. Maximum: none; minimum: 24 at 
B. Maximum: 51 at 
minimum: 30 at 
C. Maximum: none; minimum: 30 at 
D. Maximum: 30 at 
minimum: 24 at 
Mathematics
Find an equivalent expression by factoring.2x - 6y
A. 2(1 - 3y) B. 2(x - 6y) C. -4xy D. 2(x - 3y)
Mathematics
Divide.(-16x3 - 32x2 - 23x - 6) ÷ (-4x - 3)
A. x2 + 5x + 2 B. x2 - 5x - 2 C. 4x2 + 2 D. 4x2 + 5x + 2
Mathematics
Multiply.1 ? 23
A. 23 B. 123 C. 1 D. 0
Mathematics