Use the quadratic formula to solve the equation.2x2 - 16x + 30 = 0
A. 0, 3, 5
B. -3, -5
C. 2, 3, 5
D. 3, 5
Answer: D
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Solve.Molly has $5.70 in coins. She has five more nickels than dimes. She has seven fewer quarters than dimes. How many quarters does she have?
A. 18 quarters B. 16 quarters C. 11 quarters D. 23 quarters
Sketch the graph of the polar equation.r sin ? = 4
A. 
B. 
C. 
D. 
Set the viewing rectangle of your graphing calculator to 
by 
to solve the problem.Graph the following set of parametric equations for 0 ? t ? 2? and identify the letter of the alphabet that the graph resembles.x1 = -3 + 
,y1 = -4 + 
x2 = -3 + 
-17.0px;" />,y2 = -1.6 - 
A. V
B. y
C. t
D. X
Suppose that, for a certain exam, a teacher grades on a curve. It is known that the mean is 65 and the standard deviation is 6. There are 40 students in the class. How many students should receive a C?
?
?
__________ students
Fill in the blank(s) with the appropriate word(s).