Determine the vertex of the parabola.y = x2 - 2x + 6
A. (1, 5)
B. (0, 5)
C. (5, 1)
D. (1, 0)
Answer: A
Mathematics
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Solve the problem.Julie and Eric row their boat (at a constant speed) 45 miles downstream for 5 hours, helped by the current. Rowing at the same rate, the trip back against the current takes 9 hours. Find the rate of the current.
A. 1.5 mph B. 7 mph C. 2 mph D. 3 mph
Mathematics
Find an expression for the general term, an.4, -12, 36, -108, . . .
A. an = 4(-3)n B. an = 4(3)n - 1 C. an = 4(-3)n - 1 D. an = 4(-16)n - 1
Mathematics
Find the sum or difference. Write the answer in standard form.(6 - 9i) + (3 + 6i)
A. 9 + 3i B. 9 - 3i C. -9 + 3i D. 3 + 15i
Mathematics
Solve the problem.If f(?) = sin ? and f(a) = 
, find the exact value of f(a) + f(a + 2?) + f(a + 4?).
A. 1
B. 1 + 6?
C. 
D. 3
Mathematics