Find the values of x for which the geometric series converges.
A. -8 < x < 8
B. -1 < x < 11
C. 1 < x < 11
D. 2 < x < 8
Answer: D
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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
Perform the indicated operation. Write the answer in simplest form.
÷ 
A. 39
B. 
C. 37
D. 38
Solve the problem.Find out how long it takes a $2700 investment to double if it is invested at 
compounded quarterly. Round to the nearest tenth of a year. Use the formula 
.
A. 9 years B. 8.8 years C. 8.6 years D. 9.2 years
Given that x = 5 - 3i is a zero of f(x) = x3 - 4x2 - 26x + 204, find all the zeros of f.
A. x = 5 - 3i?, -5 + 3i?, -6 B. x = 5 - 3i?, 5 + 3i?, -3 C. x= 5 - 3i?, 5 + 3i?, -6 D. x = 5 - 3i?, -5 - 3i?, -3 E. x = 5 - 3i?, -5 + 3i?, -3