Let 
. Find the composite function 
.
?
Please give the answer as an expression (not an equation).
What will be an ideal response?
Mathematics
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Find the gradient field F of the function f.f(x, y, z) = 
7
A. F = 7
6i + 
j + 7
k
B. F = 7
6i + 
j - 7
k
C. F = 7
6i + 
j + 7
k
D. F = 
i + 
j - 7
k
Mathematics
Water whose temperature is at 100 oC is left to cool in a room where the temperature is 30 oC. After 2 minutes, the water temperature is 88 oC. If the water temperature T is a function of time t given by
, find k. Round your answer to the nearest hundredth.
?
A. 
B. ?
C. ?
D. ?
E. none of these
Mathematics
Verify the identity.cot2 x + csc2 x = 2 csc2 x - 1
What will be an ideal response?
Mathematics
Decide if the given ordered pair is a solution to the inequality.x ? y + 3: (-3, -7)
A. Yes B. No
Mathematics