Determine whether the graph opens upward or downward.y = 2x2 + 20x - 5

A. Upward
B. Downward


Answer: A

Mathematics

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Use inductive reasoning to predict the next line in the pattern. Then perform the arithmetic to determine whether your conjecture is correct.(1 × 9) - 4 = 5(21 × 9) - 4 = 185(321 × 9) - 4 = 2885

A. (4321 × 9) - 4 = 28,885 B. (432 × 9) - 4 = 38,885 C. (4321 × 9) - 4 = 38,885 D. (4321 × 9) - 4 = 3884

Mathematics

Solve triangle ABC. If necessary, round the answer to the nearest tenth.A = 50.5°, B = 42.3°, a = 39.3 feet

A. C = 87.2°, b = 34.3 ft, c = 50.9 ft B. C = 87.2°, b = 50.9 ft, c = 34.3 ft C. C = 88.2°, b = 34.3 ft, c = 50.9 ft D. C = 88.2°, b = 50.9 ft, c = 34.3 ft

Mathematics

Solve the problem.Mardi received an inheritance of $50,000. She invested part at 12% and deposited the remainder in tax-free bonds at 8%. Her total annual income from the investments was $5600. Find the amount invested at 12%.

A. $39,000 B. $20,000 C. $44,400 D. $40,000

Mathematics

Convert to a mixed numeral.

A. 7
B. 6
C. 7
D. 8

Mathematics