Write a chain rule formula for the following derivative.
for w = f(x, y, z); x = g(s, t), y = h(s, t), z = k(s)
A. 
= 
+ 
B. 
= 
C. 
= 
+ 
D. 
= 
+ 
Answer: C
Mathematics
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Evaluate the integral by changing the order of integration in an appropriate way.
A. 
ln 10 (1 - cos 16)
B. 
ln 10 (1 - sin 16)
C. 
ln 10 (1 - cos 16)
D. 
ln 10 (1 - sin 16)
Mathematics
Answer the following statement(s) true (T) or false (F)
Most existing research journals in mathematics education were established more than a century ago.
Mathematics
Solve the problem. 
7 =
A. 13 
- 8
B. 13
C. 13 
+ 8 
D. 13 
+ 8
E. none of these
Mathematics
Determine two functions, designated by y1 and y2, such that their union will give the graph of the given equation.16x2 + 16y2 = 25
A. y1 = 
and y2 = - 
B. y1 = 
and y2 = - 
C. y1 = 4x + 4y and y2 = 5
D. y1 = 
and y2 = - 
Mathematics