Find the distance between the points on a number line.- 
and - 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Sketch the surface z = f(x,y).f(x, y) = 2 -x2 - y2
A. 
B. 
C. 
D. 
Mathematics
121/9 ? 128/9
A. 121/9
B. 
C. 128/81
D. 12
Mathematics
Solve the system of nonlinear equations using the method of elimination.
A. (3, 
), (3, -
), (-3, 
), (-3, -
)
B. (2, 
), (-2, 
)
C. (2, -
), (2, 
)
D. (2, 
), (2, -
), (-2, 
), (-2, -
)
Mathematics
A parcel of land is circular, as shown, with a road running along the straight side. According to the surveyor, the distance from A to B is 8 miles and from P to Q is 16 miles, where PQ ? AB and Q is the midpoint of AB. What is the radius of the circle? How many square miles are in this parcel of land?
Mathematics