Find the second-order partial derivative.Find fyx when f(x,y) = 8x3y - 7y2 + 2x.
A. 48xy
B. -28
C. -14
D. 24x2
Answer: D
Mathematics
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Translate the sentence to an equation.The quotient of a and 4 is 5.
A. 
= 4
B. 
= 5
C. 
= a
D. 
= 5
Mathematics
Find the probability.A bag contains 9 red marbles, 3 blue marbles, and 4 green marbles. What is the probability of choosing a blue marble when one marble is drawn?
A. 
B. 
C. 
D. 
Mathematics
Find the distance d(P1, P2) between the points P1 and P2.P1 = (-2, -7); P2 = (4, 7)
A. 8
B. 160
C. 2
D. 160
Mathematics
Perform the operations indicated.(-4)(-3)(-1)(9)
A. 8 B. -108 C. 21 D. 108
Mathematics