Match the equation with the surface it defines.
+ 
+ 
= 1 
A. Figure 3
B. Figure 2
C. Figure 1
D. Figure 4
Answer: C
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Find the circle's circumference or area, as requested. Use 3.14 as the approximate value of ?, and round your answer to the nearest tenth.Find the circumference.
A. 3.8 in. B. 28.3 in. C. 18.8 in. D. 9.4 in.
Solve the problem.While traveling at a constant speed in a car, the centrifugal acceleration passengers feel while the car is turning is inversely proportional to the radius of the turn. If the passengers feel an acceleration of 20 feet per second per second (ft/sec2) when the radius of the turn is 60 feet, find the acceleration the passengers feel when the radius of the turn is 240 feet.
A. 5 ft/sec2 B. 6 ft/sec2 C. 8 ft/sec2 D. 7 ft/sec2
Solve the linear system by using an inverse matrix.
A. {(8, 9, 5)} B. {(-8, 5, 16)} C. {(8, 5, 9)} D. ?
Solve the system. If the system's equations are dependent or if there is no solution, state this.6x - 4y + 3z = 39-24x + 16y - 12z = -15618x - 12y + 9z = 117
A. (3, -9, -5) B. Equations are dependent C. No solution D. (-9, -5, 3)