Find an for the given geometric sequence.a2 = -10, r = -2
A. an = 5(-2)n - 1
B. an = -10(-2)n - 1
C. an = 5(-2n)
D. an = 5(-2)n
Answer: A
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Find the center of mass of a thin plate covering the given region with the given density function.The region between the curve y = 
and the x-axis from x = 1 to x = 9, with density ?(x) = 
A. 
= 
, 
= 
B. 
= 5, 
= 
C. 
= 
, 
= 
D. 
= 
, 
= 
Find the total surface area and the volume of the following right prism. (Round to the nearest tenth.)
A. T = 1157 in.2, V = 3490 in.3 B. T = 1057 in.2, V = 1690 in.3 C. T = 520 in.2, V = 1790 in.3 D. T = 520 in.2, V = 1890 in.3
Represent the system of linear equations in the form AX = B and solve by finding A-1 and using X = A-1B. y + z = 4,3x - z = 6, 2x + y + 3z = 9
What will be an ideal response?
Write the whole number in standard form.Twenty thousand, five hundred forty-four
A. 20,044 B. 200,544 C. 20,544 D. 2544