Subtract.(5x + 12y - 28z) - (29x - 10y - 18z)
A. -7x + 24y + 46z
B. -12xyz
C. -24x - 22y - 46z
D. -24x + 22y - 10z
Answer: D
Mathematics
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Solve the problem.The sum of three numbers is -4. The first, minus the second, plus 3 times the third, is 2. The third, plus 2 times the first, plus the second, is -1. What are the numbers?
A. 3, 3, -5 B. No solution C. -3, 5, 2 D. 3, -5, -2
Mathematics
Assume that f is an even function, g is an odd function, and both f and g are defined on the entire real line. State whether the combination of functions (where defined) is even or odd.fg
A. Even B. Odd
Mathematics
Simplify the expression.cos4x + sin2x cos2x
A. cos2x B. sin2x + 1 C. -sin2x D. cos2x + 1
Mathematics
Solve.If y varies inversely as the cube of x, and y = 9 when x = 2, find y when x = 6.
A. 
B. 1
C. 27
D. 3
Mathematics