Find the partial derivative.Find fx(4, -4) when f(x,y) = 7x2 - 9xy.
A. -20
B. 20
C. 92
D. -32
Answer: C
Mathematics
You might also like to view...
Evaluate the integral.
A. - 8 B. - 64 C. - 256 D. - 32
Mathematics
Solve the problem.Mari drops a ball from a height of 23 meters and notices that on each bounce the ball returns to about 
of its previous height. About how far will ball travel before it comes to rest?
A. 161 m B. 184 m C. 92 m D. 53.7 m
Mathematics
Write the phrase as a mathematical expression. Use x to represent the number. Combine like terms if possible.6 times a number added to -8, added to 6 times the sum of 9 times the number 
A. 6x - 8 + 6(9 + 7x); 48x + 60 B. 6(-8 + x) + 6(9x + 7); 60x - 41 C. 6(9x + 7) + [6x + (-8)]; 60x + 34 D. 6(-8 + x) + 6(9 + 7x); 13x + 6
Mathematics
Find the common difference for the arithmetic sequence.5, 6, 7, 8, . . .
A. 15 B. 5 C. 1 D. 0.75
Mathematics