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, ?)