Factor the trinomial by grouping.20 + 63x2 - 73x
A. (9x - 4)(7x + 5)
B. (9x + 4)(-7x + 5)
C. (9x - 4)(7x - 5)
D. prime
Answer: C
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Provide an appropriate response.Use the fact that sin-1 x = x + 
for |x| < 1 to find the series for cos-1 x.
A. 
- x + 
B. 
- x - 
C. 
- 
D. 
- x + 
Find the work done by F over the curve in the direction of increasing t.F = 
i + 
j + 
k; C: r(t) = t9i + t3j + t2k, 0 ? t ? 1
A. W = 0
B. W = 1
C. W = 
D. W = 14
Determine the probability using a probability tree.A bent coin lands tails up with a probability 0.7. If the coin is flipped three times, determine P(TTT).
A. 0.343 B. 0.49 C. 2.1 D. 0.657
Solve the problem.A sales representative is paid a commission rate of 6.7%. Find her commission if she sold $117,810 worth of goods last month.
A. $17,583.58 B. $125,703.27 C. $1758.36 D. $7893.27