Simplify.
- 
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem.Two tracking stations are on the equator 170 miles apart. A weather balloon is located on a bearing of N 42°E from the western station and on a bearing of N 23°E from the eastern station. How far is the balloon from the western station? Round to the nearest mile.
A. 481 mi B. 464 mi C. 490 mi D. 473 mi
Factor by grouping.8x2 + 10x + 12x + 15
A. (2x + 3)(4x + 5) B. (2x - 3)(4x - 5) C. (8x - 3)(x - 5) D. (8x + 3)(x + 5)
Determine whether a linear or quadratic function would be a more appropriate model for the graphed data. If linear, tell whether the slope should be positive or negative. If quadratic, decide whether the coefficient 
of x2 should be positive or negative. DENTAL FLOSS USE 
Years since 1990
A. Linear; positive B. Quadratic; negative C. Linear; negative D. Quadratic; positive
Solve the problem.The sum of three numbers is -11. The first, minus the second, plus 5 times the third, is -9. The third, plus 5 times the first, plus the second, is -27. What are the numbers?
A. (-4, -5, -2) B. (4, 5, 2) C. (-4, -4, -5) D. No solution