Evaluate. The differential is exact.
A. -42
B. 0
C. -21
D. 29
Answer: C
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Find the equation of the axis of symmetry of the parabola.f(x) = x2 - 2x + 1
A. x = -5 B. x = 5 C. x = 1 D. x = -1
Factor the trinomial completely.40x3 + 28x2 - 48x
A. x(20x - 16)(2x + 3) B. x(5x - 4)(8x + 12) C. 4(5x2 - 4)(2x + 3) D. 4x(5x - 4)(2x + 3)
Solve. Write the answer as a mixed number as needed.Brian was training to run a marathon. During the three-day period before the race he decided that he would train for a total of 12 hours. If he trained for 2
hours on the first day and 2
hours on the second day, how many hours would he need to train on the third day?
A. 7
hours
B. 7
hours
C. 6
hours
D. 7 hours
Use the Binomial Theorem to expand the binomial.(
+ 
)4
A. x2 + 4
x3/2 + 12x + 8
x1/2 + 4
B. x2 + 2
x3/2 + 6x + 4
x1/2 + 4
C. x2 + 4
D. x2 + 4
x1/2 + 12x + 8
x1/2 + 16