Insert <, >, or = to make the statement true.6
-3
A. >
B. =
C. <
Answer: A
Mathematics
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Find the value of c for which the expression is a perfect square trinomial. Then factor the perfect square trinomial.x2 + x + c
A. c = ; x2 +
x +
=
2
B. c = 144; x2 + x + 144 = (x +12) 2
C. c = ; x2 +
x +
=
2
D. c = ; x2 +
x +
=
2
Mathematics
Graph the piecewise function.f(x) =
A.
B.
C.
D.
Mathematics
250 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with mean ? = 75 and standard deviation ? = 10.Approximately how many students had test scores between 68.25 and 85?
A. 107 B. 85 C. 188 D. 147 E. none of these
Mathematics
Graph the function over a one-period interval.y = -3 cos
A.
B.
C.
D.
Mathematics