Solve using the quadratic formula. Use a calculator to approximate the solutions to the nearest thousandth.3x2 + 28x + 14 = 0

A. -8.803, -0.53
B. -0.477, -1.856
C. -2.195, -8.538
D. -1.623, -6.311


Answer: A

Mathematics

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Factor by grouping.15x2 - 6x + 20x - 8

A. (15x - 4)(x + 2) B. (3x - 4)(5x + 2) C. (15x + 4)(x - 2) D. (3x + 4)(5x - 2)

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Solve the problem.Two tracking stations are on the equator 148 miles apart. A weather balloon is located on a bearing of  from the western station and on a bearing of  from the eastern station. How far is the balloon from the western station? Round to the nearest mile.

A. 436 mi B. 445 mi C. 505 mi D. 514 mi

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Solve the polynomial equation.(2x + 9)2(8 - x)2 = 0

A. , -8
B. - , -8, 8
C. - , 8
D. -9, 8

Mathematics