Find the sum of the given infinite geometric series if possible. Write the answer as a decimal number if appropriate.
A. -0.4
B. 0.4
C. -0.5
D. 1
Answer: A
Mathematics
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Find the center and radius of the sphere.(x + 2)2 + (y + 9)2 + (z + 8)2 = 
A. C(2, 9, 8), a = 
B. C(2, 9, 8), a = 
C. C(-2, -9, -8), a = 
D. C(-2, -9, -8), a = 
Mathematics
Use the Comparison Test to determine whether the improper integral converges or diverges.
A. converges B. diverges
Mathematics
Tell whether the statement is true or false. If false, give the reason.15 ? {x|x is an even counting number}
A. False; 15 is a counting number. B. True C. False; 15 is an even counting number. D. False; 15 is an element of the set.
Mathematics
Find the sum. Simplify when necessary.
+ 
A. - 
B. 0
C. - 
D. - 
Mathematics