Determine whether the following is always true or not always true. Given reasons for your answers.(u × v) ? w = u ? (w × v)
What will be an ideal response?
Not always true; (u × v) ? w = u ? (v × w), but v × w = -(w × v) from which it follows that the original equation false if 
Mathematics
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Combine like terms.-4x9 + 7x7y - 15x9 - 
- 13x7y + 7x9
A. -18x9- 
B. -18x9 - 18x7y - 
C. -12x9 - 6x7y - 
D. -12x9 + 7x7y - 
Mathematics
Minimize 
subject to the given constraints.
?
?
A. 
B. 
C. 
D. 
E. none of these
Mathematics
Find the measure of the angle.
?YZV
A. 145° B. 140° C. 135° D. 155°
Mathematics
The graph of the polynomial f(x) is shown in the figure. Estimate the zeros and state whether their multiplicities are odd or even.
A. -3 (odd), -
(even), 2 (odd)
B. -3 (odd), -
(odd), 2 (even)
C. -3 (even), -
(even), 2 (odd)
D. -3 (even), -
(odd), 2 (even)
Mathematics