Use implicit differentiation to find the specified derivative at the given point.Find 
at the point (1, 2, 3) for 7x2 + 4 ln xz + 2yz2 - 4ez = 0.
A. 1
B. - 3
C. - 1
D. - 
Answer: C
Mathematics
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Find the absolute extreme values of the function on the interval.h(x) = 
x + 2, -3 ? x ? 3
A. absolute maximum is - 1 at x = -3; absolute minimum is -3 at x = 3 B. absolute maximum is - 1 at x = 3; absolute minimum is 1 at x = -3 C. absolute maximum is - 1 at x = -3; absolute minimum is 1 at x = 3 D. absolute maximum is 3 at x = 3; absolute minimum is 1 at x = -3
Mathematics
Write the equation of the axis of symmetry.f(x) = 2x2 - 20x + 49
A. x = 5 B. x = -5 C. x = 1 D. x = -1
Mathematics
Determine the number of subsets of the set.A set of days of the week
A. 124 B. 128 C. 256 D. 127
Mathematics
Simplify the expression.7
+ 5
A. 8
B. -22
C. 12
D. 22
Mathematics