Factor the trinomial, or state that the trinomial is prime.9x2 + 6xy - 8y2
A. (9x + 4y)(x - 2y)
B. (3x + 4y)(3x - 2y)
C. prime
D. (3x - 4y)(3x + 2y)
Answer: B
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Solve the problem. Round your answer to 2 decimal places when necessary.The overall U.S. death rate for 60 year-olds is approximately 12 deaths per 1000 people. Suppose that a life insurance company insures 2000 60-year-old people. The cost of the premium is $760 per year, and the death benefit is $55,000. What is the expected profit or loss for the insurance company?
A. $200,000 profit B. $1,320,000 loss C. $310,000 profit D. $181,760 profit
Write the equation for the plane.The plane through the point P(3, 4, 4) and parallel to the plane 
A. 2x + 7y + 4z = -50 B. 3x + 4y + 4z = 50 C. 2x + 7y + 4z = 50 D. 7x + 4y + 2z = 50
Solve.The headlights of a truck are mounted at a height of 4.1 ft. If the light beam drops 2 in. per 75 ft, how far ahead in the road will the headlights illuminate? (Round to the nearest whole number, if necessary.)
A. 1852 ft B. 1849 ft C. 1845 ft D. 1860 ft
Use symbols to write the expression and then evaluate it.The quantity eleven plus six divided by the square root of 4
A. (11 + 6) ? 
; 68
B. (11 + 6) ÷ 
; 8.5
C. (11 + 6) ÷ 
; 17
D. (11 + 6) ? 
; 34