Find the center of the hyperbola.
- 
= 1
A. (-5, -2)
B. (-1, -2)
C. (-2, -5)
D. (2, 5)
Answer: C
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Find the center of mass of a thin plate covering the given region with the given density function.The region bounded by the parabola y = 64 - x2 and the x-axis, with density ?(x) = 8x2
A. 
= 0, 
= 
B. 
= 0, 
= 
C. 
= 0, 
= 
D. 
= 
, 
= 0
Write a formula for the nth term of the arithmetic sequence. Use the formula to find the indicated term of the sequence.a = 6, d = -2;
Find a16.
A. an = 8 - 2n, a16 = -12 B. an = 6 - 2n, a16 = -24 C. an = 8 - 2n, a16 = -24 D. an = 8 + 2n, a16 = -24
Solve the problem.Find the nth term of the following geometric sequence:9, 9
, 18, 18
, . . .
A. 9(
)n-1
B. 9(
)n
C. 9 ? 2n
D. 9(2)n-1
Solve.Noise at a construction site has an intensity level of 10-6 watt per square meter. How many decibels is this noise?
A. 6 decibels B. 60 decibels C. -60 decibels D. 600 decibels