Solve. Write the answer as a mixed number in simplest form.A patient in rehabilitation walked on a treadmill 7
miles over 3 days. How many miles is this per day?
A. 2
mi
B. 7
mi
C. 2
mi
D. 22
mi
Answer: C
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Identify the type of surface represented by the given equation. 
+ 
= 
A. Hyperbolic paraboloid
B. Elliptic cone
C.
| Ellipsoid |
D. Paraboloid
Solve the problem.The number of births in County A has been increasing in recent years. Use the information given in the bar graph for the years 1960 and 1990, letting x = 0 represent the year 1960 and letting y represent the number of births. Use the graph to estimate the number of births in 1970.
A. 1900 B. 1825 C. 1850 D. 1950
Graph the parabola or ellipse. Include the directrix that corresponds to the focus at the origin.r = 
A. 
B. 
C. 
D. 
Provide an appropriate response.Identify the base and exponent in the expression -y13.
A. Base: -y, exponent: 13 B. Base: 13, exponent: y C. Base: y, exponent: 13 D. Base: 13, exponent: -y