Graph the circle.x2 + y2 = 81
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Solve the problem.Find the volume V of a sphere of diameter 7 cm. Use 3.14 for ?. If necessary, round the result to the nearest tenth.
A. V = 101 cm3 B. V = 1436 cm3 C. V = 179.5 cm3 D. V = 51.3 cm3
Mathematics
Determine if the graph of the function is concave up or concave down.y = -x2 + 1
A. Concave up B. Concave down
Mathematics
Draw the angle in standard position.135°
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.The difference between two positive integers is 54. One integer is three times as great as the other. Find the integers.
A. 27 and 81 B. 54 and 81 C. 27 and 54 D. 81 and 135
Mathematics