Simplify.
A. 4
B. 8
C. 1024
D. 3
Answer: B
Mathematics
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Find the value of (f ? g)' at the given value of x.f(u) = 
+ 13, u = g(x) = 
, x = 5
A. 10 B. -23 C. 25 D. 5
Mathematics
Determine whether the given functions are inverses of each other.f(x) = 
, x ? 0, g(x) = x2, x ? 0
A. Yes B. No
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Find the principal unit normal vector N for the curve r(t).r(t) = (7t sin t + 7 cos t)i + (7t cos t - 7 sin t))k
A. N(t) = (-sin t)i - (cos t)k
B. N(t) = - 
(cos t)i - 
(sin t)k
C. N(t) = (sin t)i + (cos t)k
D. N(t) = (cos t)i - (sin t)k
Mathematics
Find the general form of the equation for the line with the given properties.Slope = - 
; containing the point (0, 2)
A. 4x + 9y = -18 B. 4x + 9y = 18 C. 9x + 4y = -18 D. 4x - 9y = 18
Mathematics