Graph the parabola or ellipse. Include the directrix that corresponds to the focus at the origin.r = 
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Evaluate the expression x - y for the given values of the variables.x = -28, y = 70
A. -42 B. 98 C. -98 D. 42
Mathematics
Write the expression using exponential notation. Then identify the base and the exponent.(-5x) ? (-5x) ? (-5x) ? (-5x)
A. -5x4 base: -5x exponent: 4 B. (-5x)4 base: -5x exponent: 4 C. (-5x)4 base: 5x exponent: 4 D. -5x4 base: 5x exponent: 4
Mathematics
Which of the following functions is represented by the graph below?
A. 
B. 
C. 
D. 
E. 
Mathematics
Solve the problem.Find the arithmetic mean for the collection of numbers.16, 12, 11, 1, 20, 17, 18, 1
A. 12 B. 17 C. 11 D. 16
Mathematics