How many small squares must be shaded to represent the given percentage of the large rectangle shown?80%
A. 51
B. 42
C. 48
D. 54
Answer: C
Mathematics
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Find the power series representation for f(x).f(x) = 
A. 1 + 4x + 
x2 + 12x3 + . . .
B. 4x + 
x2 + 4x3 + . . .
C. 1 + 4x + 
x2 + 4x3 + . . .
D. 4x + 
x2 + 12x3 + . . .
Mathematics
Find all the second order partial derivatives of the given function.f(x, y) = xy2 + yex2 + 5
A. 
= 2yex2(1 + 2x2); 
= 2x; 
= 
= 2y + 2xex2
B. 
= 2yex2; 
= 2x; 
= 
= 2y + 2xex2
C. 
= yex2(1 + 2x2); 
= x; 
= 
= y + xex2
D. 
= 2yex2; 
= 2x; 
= 
= 2xex2
Mathematics
Rewrite with positive exponents, and simplify, if possible.5-7/9ax-4/5z5
A. 
B. 
C. 
D. 
Mathematics
Complete the equation so the result is an identity. tan x csc x = ___
A. cos x B. 1 C. sec x D. csc x
Mathematics