Find all specified roots.Fifth roots of 1.
A. 1, cis 
, cis 
, cis 
,-1
B. 1, cis 
, cis 
, cis 
, cis 
C. -1, cis 
, cis 
, cis 
, cis 
D. 1, cis 
, cis 
, cis 
, cis 
Answer: D
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Write the standard equation for the following circle.
A. x2 + y2 = 100 B. x2 - y2 = 10 C. x2 - y2 = 100 D. x2 + y2 = 10
Use a graphing calculator to solve the system. Express solutions with approximations to the nearest thousandth.
x + 
y - 3 = 0
x - y - 
= 0
A. ? B. {(1.581, 0.289)} C. {(1.099, 0.547)} D. {(1.670, 0.443)}
Determine whether the equation defines y as a function of x. -2x + x2 - 93 = y
A. function B. not a function
Solve the problem.A newspaper carrier has $5.80 in change. He has two more quarters than dimes but three times as many nickels as quarters. How many coins of each type does he have?
A. 14 quarters, 12 dimes, 42 nickels B. 36 quarters, 34 dimes, 12 nickels C. 12 quarters, 14 dimes, 36 nickels D. 12 quarters, 10 dimes, 36 nickels