Find the vertex.f(x) = 3x2 + 18x + 31
A. (-3, 4)
B. (-4, 3)
C. (3, -4)
D. (4, -3)
Answer: A
Mathematics
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Verify that the equation is an identity.
= cot ? - cot ?
What will be an ideal response?
Mathematics
Find the first term and the common difference for the arithmetic sequence.S4 = 0, a4 = 9
A. a1 = -9, d = 4.5 B. a1 = -9, d = 6 C. a1 = -36, d = 4.5 D. a1 = -36, d = 6
Mathematics
Solve.The ratio of the distances a 7-iron and a 5-iron will drive a golf ball is 5 to 6. If a golfer averages 175 yd with a 7-iron, how far should he average with a 5-iron?
A. 186 yd B. 164 yd C. 146 yd D. 210 yd
Mathematics
Subtract.- 
A. 1.73 B. 1.83 C. 2.83 D. 3
Mathematics