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