Find fx, fy, and fz.f(x, y, z) = xz
A. fx = z
; fy = 
; fz = x
B. fx = z
; fy = - 
; fz = x
C. fx = z
; fy = - 
; fz = x
D. fx = z
; fy = 
; fz = x
Answer: D
Mathematics
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Solve.At the start of a chemistry experiment, Sarah measured the temperature of a liquid to be 
At the end of the experiment, it had risen 
What was the liquid's temperature at the end of the experiment?
A. -37°C B. -47°C C. 37°C D. 47°C
Mathematics
Simplify the expression by combining like terms. 13.5 + 22.01m - 32.39
A. 22.01m - 18.89 B. 22.01m - 19.59 C. 18.89m + 22.01 D. 18.81m - 32.39
Mathematics
Find the product.(x - 4)(x2 + 4x + 16)
A. x3 - 8x2 - 8x - 64 B. x3 - 64 C. x3 + 64 D. x3 + 8x2 + 8x - 64
Mathematics
Evaluate the expression for the given replacement values.x - y
for x = -3, y = -20
A. -23 B. 17 C. -17 D. 23
Mathematics