Evaluate.1 + (-8) - 5 + (-8)
A. -10
B. -20
C. 6
D. -4
Answer: B
Mathematics
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Find all the second order partial derivatives of the given function.f(x, y) = xy2 + yex2 + 5
A. fxx(x, y) = 2yex2; fyy(x, y) = 2x; fyx(x, y) = fxy(x, y) = 2xex2 B. fxx(x, y) = 2yex2; fyy(x, y) = 2x; fyx(x, y) = fxy(x, y) = 2y + 2xex2 C. fxx(x, y) = yex2(1 + 2x2); fyy(x, y) = x; fyx(x, y) = fxy(x, y) = y + xex2 D. fxx(x, y) = 2yex2(1 + 2x2); fyy(x, y) = 2x; fyx(x, y) = fxy(x, y) = 2y + 2xex2
Mathematics
Graph the function. Show at least one period.y = -4 sin 
A. 
B. 
C. 
D. 
Mathematics
Insert < or > to make the statement true.84 _____ -53
A. 84 < -53 B. 84 > -53
Mathematics
Write as a percent. Round your answer to the nearest tenth, if necessary.
A. 8.9% B. 88.9% C. 180% D. 49.4%
Mathematics