Evaluate.
; k = 7, m = 2, n = 8, r = 2
A.
B. -
C.
D.
Answer: A
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Perform the following operation.
?
Multiply and
.
?
A.
B.
C.
D.
E.
Find v ? u.v = and u =
A. i -
j
B. i
C. 0
D. -
Find the zeros of the polynomial function. State whether the graph crosses the x-axis, or touches the x-axis and turns around, at each intercept. f(x) = -x2(x + 8)(x2 + 1)
A. x = 0, touches the x-axis and turns around; x = 8, crosses the x-axis B. x = 0, touches the x-axis and turns around; x = -8, crosses the x-axis; x = -1, crosses the x-axis; x = 1, crosses the x-axis; C. x = 0, touches the x-axis and turns around; x = -8, crosses the x-axis D. x = 0, touches the x-axis and turns around; x = -8, crosses the x-axis; x = -1, touches the x-axis and turns around
Graph the inequality and write the solution set using both set-builder notation and interval notation.x > 5
A. {x|x ? 5}, (-?, 5]
B. {x|x < 5}, (-?, 5)
C. {x|x > 5}, (5, ?)
D. {x|x ? 5}, [5, ?)