Write the expression in the standard form a + bi.(1 + i)20
A. -1024
B. 1024
C. 1024i
D. -1024i
Answer: A
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Solve the problem.Find equations for the horizontal and vertical tangent lines to the curve 
A. Horizontal: 
at 
, 
at 
, 
at 
, 
at 
; vertical: 
at 
at 
at 
, 
at 
B. Horizontal: 
at 
, 
at 
, 
at 
, 
at 
; vertical: 
at 
at 
at 
, 
at 
C. Horizontal: 
at 
, 
at 
, 
at 
, 
at 
; vertical: 
at (3, 0), x = 1 at (-1, ?), 
at 
, 
at 
D. Horizontal: 
at 
, 
at 
, 
at 
, 
at 
; vertical: 
at 
at 
at 
, 
at 
Solve the problem.Amy's little brother Jimmy has eaten 40% of a chocolate cake. Amy, Brad, and Cecilia wish to equally divide the remainder of the cake. What percentage of the original cake would be considered a fair share to each?
A. 10%
B. 20%
C. 60%
D. 33
%
E. none of these
Graph the equation.x2 = 16y
A. 
B. 
C. 
D. 
Subtract.91 - 37
A. 128 B. 52 C. 54 D. 154