Find the power of i.i21
A. -i
B. 1
C. -1
D. i
Answer: D
Mathematics
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Solve the system as matrix equations using inverses.There were 340 people at a play. The admission price was $2 for adults and $1 for children. The admission receipts were $490. How many adults and how many children attended?
A. 95 adults and 245 children B. 122 adults and 218 children C. 150 adults and 190 children D. 190 adults and 150 children
Mathematics
Divide.(8x3 - 2x2 - 7x + 10) ÷ (4x + 5)
A. 2x2 + 2 B. x2 + 3x - 2 C. 2x2 - 3x + 2 D. x2 - 3x + 2
Mathematics
Divide.
A. 0.22a3b B. 0.22a3cb C. 0.22a3c D. -4.686a3c
Mathematics
If the sequence is geometric, find the common ratio. If the sequence is not geometric, say so.
, 
, 
, 
, 
A. 5 B. 4 C. 6 D. Not geometric
Mathematics