Find the specified domain.For g(x) = 
and h(x) = 
, what is the domain of h ? g ?
A. [-2, 7) ? (7, ?)
B. [0, 47) ? (47, ?)
C. [-2, 47) ? (47, ?)
D. [0, 7) ? (7, ?)
Answer: C
Mathematics
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A. (-6, -?) B. (-6, 3) C. (-?, 3) D. (-3, 6)
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Find the value of the constant k so that the given function in a probability density function for a random variable over the specified interval. f(x) = 
x over [3, k]
A. 
B. 23
C. 
D. 4
Mathematics
Find the work done by F over the curve in the direction of increasing t.F = ti + 
j + k ; C: r(t) = e2ti + e2tj + (2t2 + t)k, -1 ? t ? 1
A. W = 6 B. W = 2 C. W = e2 + e-2 + 2 D. W = e2 + e-2 + 6
Mathematics
Determine whether the graph opens upward or downward.y = -2x2 + 12x - 22
A. Upward B. Downward
Mathematics