Evaluate the indicated partial derivative at the given point.z = 4xy - x2, 
A. 22
B. -69
C. -26
D. -14
Answer: C
Mathematics
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Express the given function as a composite of functions f and g such that y = f(g(x)).y = 
A. f(x) = x, g(x) = 7x + 7
B. f(x) = -
, g(x) = 7x + 7
C. f(x) = 
, g(x) = 7x - 7
D. f(x) = 
, g(x) = 7x + 7
Mathematics
Determine if the given integer value for the variable is a solution to the equation.-2(x + 7) + 4x = 3(x - 7) + 8; 3
A. not a solution B. solution
Mathematics
Decide whether the equation is conditional, an identity, or a contradiction. Give the solution set.10m + 8 = 2(3m + 16)
A. Identity; {all real numbers} B. Contradiction; ? C. Conditional; {6} D. Conditional; {-10}
Mathematics
Find the sum.1 + 3 + 5 + . . . + 139
A. 9800 B. 7315 C. 14,630 D. 4900
Mathematics