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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Multiply the polynomials.(5y - 9)(-9y2 - y + 6)
A. -45y3 + 39y - 54 B. -45y3 + 76y2 + 39y - 54 C. -45y3 + 86y2 + 39y - 54 D. -14y2 + 39y - 54
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Provide an appropriate response.Consider the selections of particular thirteen card bridge hands. Is this a combination, a permutation, or neither?
A. Combination B. Permutation C. Neither
Mathematics
Determine whether B is the inverse of A.A = 
, B = 
A. Yes B. No
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Use the derivative of 
to determine any points on the graph of 
at which the tangent line is horizontal.
A. 
B. 
and 
C. has no points with a horizontal tangent line.
D. 
and 
E. 
Mathematics