Evaluate.4 ? (-1) ? 3 ? (-7)
A. 84
B. 8
C. -84
D. 25
Answer: A
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Solve the problem.If v = 4i - 4j + k, find a vector perpendicular to both v and i + k.
A. 3i + 2j - 3k B. -4i - 3j + 4k C. 2i + 3j - 2k D. i - j + 3k
Sketch the graph and show all local extrema and inflection points.y = -x4 + 4x2 - 5
A. Local minima: (-
, 1), (
, 1)
Local maximum: (0, 5)
Inflection point: 
, 
B. Local maxima: (-
, -1), (
, -1)
Inflection points: 
, 
C. Local maxima: (-
, -1), (
, -1)
Local minimum: (0, -5)
No inflection points
D. Local maxima: (-
, -1), (
, -1)
Local minimum: (0, -5)
Inflection points: 
, 
Match the description with the correct symbolic expression.a linear equation whose graph has x-intercept -5 and y-intercept 19
A. -19x + 5y = 95 B. y = 19x + 95 C. x = 19 D. f(x) = -5
Add or subtract.68 - 4.88
A. 67.512 B. 63.912 C. 63.12 D. 1.92