Find the vertex of the parabola.f(x) = x2 - 4x + 11
A. (0, 2)
B. (7, 0)
C. (7, 2)
D. (2, 7)
Answer: D
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Answer the question.In a graph that displays the annual percent increase in the price of grain, what does it mean if the graphs falls over a certain period?
A. Inflation has gone down B. The real cost of grain has gone down C. The rate at which the price is rising is decreasing D. The price of grain is decreasing
Convert.53.4 hectometers = _____ decimeters
A. 53,400 B. 5.34 C. 5340 D. 534
Decide whether the statement is true or false. If it is false, tell why.The equation -x2 = -49 has no real solutions.
A. False; the equation has one real number solution, 7. B. True C. False; the equation is equivalent to x2 = 49 and has two real solutions, 7 and -7.
Divide. Assume all variables are nonzero.
A. -2x18 B. 5x2 C. 2x2 D. 2x18