Solve the problem.Supertankers off-load oil at a docking facility shore point 3 miles offshore. The nearest refinery is 
les east of the docking facility. A pipeline must be constructed connecting the docking facility with the refinery. The pipeline costs $300,000 per mile if constructed underwater and $200,000 per mile if over land. 
Locate point B to minimize the cost of construction.
A. Point B is 3.34 miles from Point A.
B. Point B is 2.74 miles from Point A.
C. Point B is 2.68 miles from Point A.
D. Point B is 5.40 miles from Point A.
Answer: C
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Express the terminating decimal as a quotient of integers. If possible, reduce to lowest terms.0.9
A. 
B. 
C. 
D. 1
Factor completely. If the polynomial is prime, state so.9x2 - 16
A. (3x + 4)2 B. (3x - 4)2 C. (3x + 4)(3x - 4) D. prime
Find any numbers for which the rational expression is undefined.
A. x = 2, x = -3 B. x = 10, x = -10 C. x = 0 D. x = -2, x = -3
Add the value that will turn the expression into a perfect square trinomial to complete the square. Then factor the trinomial to a squared binomial.x2 + 10x
A. add 25; (x - 5)2 B. add 25; (x + 5)2 C. add 100; (x + 10)2 D. add 10; (x + 5)2