Use the given zero to find the remaining zeros of the function.f(x) = x3 + 2x2 - 6x + 8; zero: 1 + i
A. 1 - i, 4i
B. 1 - i, -4
C. 1 - i, 4
D. -4, 4
Answer: B
Mathematics
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Solve the system by substitution.x2 + y2 = 5x + y = 3
A. (-2, 1), (-1, 2) B. (2, 1), (1, 2) C. (-2, -1), (-1, -2) D. (2, -1), (1, -2)
Mathematics
Find the number of subsets of the set.{x | x is a day of the week}
A. 124 B. 256 C. 128 D. 127
Mathematics
Simplify.
+ 
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.You have $50,000 and wish to invest part at 10% and the rest at 6%. How much should be invested at each rate to produce the same return as if it all had been invested at 9%?
A. $37,500 at 6%, $12,500 at 10% B. $37,000 at 10%, $13,000 at 6% C. $37,000 at 6%, $13,000 at 10% D. $37,500 at 10%, $12,500 at 6%
Mathematics