Find all the first order partial derivatives for the following function.f(x, y) = 7x - 4y2 - 2
A. 
= 5; 
= -8y - 2
B. 
= -8y; 
= 7
C. 
= 7; 
= -8y
D. 
= 7x; 
= -8y
Answer: C
Mathematics
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at (x, y, z) = (5, 2, 2) for the function u(p, q, r) = p2 - q2 - r; p = xy, q = y2, r = xz.
A. 18 B. 38 C. 42 D. 22
Mathematics
Find the domain and range of the function.y = x3 + 7
A. D = (-?, ?), R = [7, ?) B. D = (-?, ?), R = [0, ?) C. D = [0, ?), R = [7, ?) D. D = (-?, ?), R = (-?, ?)
Mathematics
Choose the equation that matches the graph.
A. f(x) = x2 - 3x - 9 B. f(x) = -x2 + 3x - 9 C. f(x) = -x2 - 3x - 9 D. f(x) = x2 + 3x + 9
Mathematics
Find a so that the statement is true.
a = __________
Fill in the blank(s) with the appropriate word(s).
Mathematics