Factor the polynomial completely. If the polynomial is prime, so state.-x2 - 3x + 70
A. -(x + 10)(x - 7)
B. -(x - 10)(x + 1)
C. -(x - 10)(x + 7)
D. -(x - 10)(x - 7)
Answer: A
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A horse trots in a perfect circle around its trainer at the end of a 20-foot-long rope. How far does the horse travel as it circles the trainer once?
A. 400 ft B. 63 ft C. 1,657 ft D. 126 ft E. 1,257 ft
Solve the problem.A power plant is located on a river that is 700 feet wide. To lay a new cable from the plant to a location in a city 2 miles downstream on the opposite side costs $200 per foot across the river and $125 per foot along the land. Suppose that the cable goes from the plant to a point Q on the opposite side that is x feet from the point P directly opposite the plant. Write a function C(x) that gives the cost of laying the cable in terms of the 
A. C(x) = 200
+ 125(2 - x)
B. C(x) = 125
+ 200(10,560 - x)
C. C(x) = 200
+ 125(10,560 - x)
D. C(x) = 200(700 - x) + 125(2 - x)
Find the difference.- 
- 
A. - 
B. - 
C. 
D. 
Find the power of i.i4
A. -1 B. 1 C. i D. -i