Write a chain rule formula for the following derivative.
for w = f(x, y, z); x = g(r, s), y = h(t), z = k(r, s, t)
A. 
= 
B. 
= 
+ 
C. 
= 
+ 
D. 
= 
+ 
Answer: D
Mathematics
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Determine whether the graph of the function is symmetric about the y-axis, the origin, or neither of these.f(x) = 
A. y-axis B. Origin C. Neither
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Provide an appropriate response.The solution of 
> 0 is
A. -1 < x < 1, 2 < x < 3. B. x < -1, 1 < x < 3. C. x < 2, 2 < x3, x > 3. D. 1 < x < 2, x > 3. E. x < -1, 1 < x < 2, x > 3.
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Solve the equation.
= 6 - 
A. {0, 9} B. {9, -9} C. {0, -9} D. {9, 18}
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Evaluate.x + y, when x = 4 and y = -9
A. 13 B. -36 C. -5 D. -13
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