Find the power of i.i3
A. 1
B. i
C. -i
D. -1
Answer: C
Mathematics
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Factor the trinomial, or state that the trinomial is prime.x2 - x - 40
A. prime B. (x + 5)(x - 8) C. (x - 5)(x + 8) D. (x - 40)(x + 1)
Mathematics
Select the more reasonable temperature for the item.A cold winter day in Montreal, Canada 26°C 26°F
A. 26°C B. 26°F
Mathematics
Simplify the expression. Assume all variables represent positive real numbers.
A. 
B. 7
C. 
D. 11
Mathematics
Perform the indicated operation.(-3x4 + 4x6 + 7 + 9x5) - (3 + 6x5 + 9x6 - 7x4)
A. 13x6 + 15x5 - 10x4 + 4 B. -5x6 + 15x5 - 10x4+ 10 C. -5x6 + 3x5 + 4x4+ 4 D. 13x6 + 15x5 - 10x4 + 10
Mathematics