Find the sum of the infinite geometric series, if it exists.-12 - 4 - 
- 
- . . .
A. does not exist
B. - 18
C. 6
D. - 
Answer: B
Mathematics
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Simplify the algebraic expression.6a - 3a2 + 2a
A. 5a3 B. 8a + 2a2 C. 8a - 3a2 D. 8a - 3
Mathematics
Evaluate -(-x) for the given value of x.x = 
A. - 
B. 
C. 7
D. 0
Mathematics
Solve the problem.A gas company has the following rate schedule for natural gas usage in single-family residences:Monthly service charge $8.80Per therm service charge1st 25 therms$0.6686/thermOver 25 therms$0.85870/thermWhat is the charge for using 25 therms in one month?What is the charge for using 45 therms in one month?Construct a function that gives the monthly charge C for x therms of gas.
What will be an ideal response?
Mathematics
Find the inverse of the matrix. 
A. 
B. 
C. 
D. 
Mathematics