Solve the problem.If a coin is tossed four times, how many different heads-tails sequences are possible?
A. 32
B. 8
C. 16
D. 64
Answer: C
Mathematics
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Multiply and simplify.25 ? 
A. 
B. 125
C. 5
D. 
Mathematics
Graph the ellipse described.Foci at (0, ±
) Vertices at (0, ±8)
A. 
B. 
C. 
D. 
Mathematics
Solve.x - 2y + 2z = 2 y + 4z = 0 z = -4
A. (42 , 16, -4) B. (-40 , -15, -4) C. (40 , 15, -4) D. (-42 , -16, -4)
Mathematics
Use De Moivre's Theorem to find the indicated power of the complex number. Write your answer in standard form a + bi.(-5
+ 5
i)3
A. 500
+ 500
i
B. 5
+ 5
i
C. 15
+ 15
i
D. 50
+ 50
i
Mathematics