Find an equation for the sphere with the given center and radius.Center (0, -2, -1), radius = 6
A. x2 + y2 + z2 + 4y + 2z = 31
B. x2 + y2 + 6z2 + 4y + 2z = 31
C. x2 + y2 + z2 + 4y - 2z = 31
D. x2 + y2 + 6z2 + 4y - 2z = 31
Answer: A
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Write the number in scientific notation.The treasurer's records showed a debt of $706,564.
A. $7.06564 × 10-5 B. $7.06564 × 101 C. $7.06564 × 106 D. $7.06564 × 105
Solve the problem using inductive reasoning.Find the 6th triangular number that corresponds to the following dot sequence.
A. t6 = 21 B. t6 = 42 C. t6 = 15 D. t6 = 18
Provide an appropriate response.A garden plot turned out to be a trapezoid whose parallel sides measured 18 feet and 42 feet respectively. The garden is 12 feet wide. What is the area of the garden plot?
A. 42 ft2 B. 360 ft2 C. 720 ft2 D. 9,072 ft2
Find the length of the curve.y = 
, 2 ? x ? 5
A. 14
B. 21
C. 6
D. 