Solve the problem.Find the sum of the infinite series 1 + 9r + r2 + 9r3 + r4 + 9r5 + r6 + . . . for those values of r for which it converges.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Write fraction as a percent. If necessary, round the percentage to the nearest tenth.
A. 1.4% B. 70% C. 14.3% D. 20.4%
Mathematics
Determine whether the equation defines y as a function of x.y = 
A. Yes B. No
Mathematics
Solve the problem.A convention manager finds that she has $1440 made up of twenties and fifties. She has a total of 45 bills. How many fifty-dollar bills does the manager have?
A. 12 fifty-dollar bills B. 27 fifty-dollar bills C. 18 fifty-dollar bills D. 45 fifty-dollar bills
Mathematics
Use a graphing calculator to find the matrix product and/or sum.Find (B + C)A.A = 
B = 
C = 
A. 
B. 
C. 
D. Does not exist
Mathematics