Multiply or divide and simplify your answer.1
? 7
A. 9
B. 13
C. 10
D. 7
Answer: A
Mathematics
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Find a formula for the nth partial sum of the series and use it to find the series' sum if the series converges.
+ 
+ 
+ ... + 
+ ...
A. 
; 4
B. 
; 2
C. 
; 4
D. 
; 2
Mathematics
Write the binomial expansion of the expression.(-2x2 - y)5
A. -32x10 - 80x8y + 80x6y2 - 40x4y3 + 10x2y4 - y5 B. 32x10 + 80x8y + 80x6y2 + 40x4y3 + 10x2y4 + y5 C. -32x10 + 80x8y - 80x6y2 + 40x4y3 - 10x2y4 + y5 D. -32x10 - 80x8y - 80x6y2 - 40x4y3 - 10x2y4 - y5
Mathematics
Solve the equation.
+ 5 = x
A. {2, 9} B. {2} C. {9, 18} D. {9}
Mathematics
Solve the equation.
(r + 6) = 
(r + 8)
A. -1 B. 1 C. 2 D. -2
Mathematics