Combine. Assume that all variables represent non-negative real numbers.3
+ 6
A. 9
B. 9
C. 9
D. 3
Answer: A
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Use the unpaid balance method to find the finance charge on the credit card account. The last month's balance and any other transactions are given.Month: April (30 days)Previous month's balance: $490Interest rate: 20%
A. $9.95 B. $14.52 C. $7.45 D. $597.17
Determine if the geometric series converges or diverges. If it converges, find its sum.1 + (-8) + (-8)2 + (-8)3 + (-8)4 + . . .
A. converges, 8 B. converges, 64 C. diverges D. converges, 80
Solve the equation by factoring.15x3 + 90x2 + 120x = 0
A. {-4, -2}
B. 
C. {0, -4, -2}
D. {0, 4, 2}
Identify where f is increasing and where f is decreasing.f(x) = x2 - 2
A. increasing: (-?, ?); decreasing: never B. increasing: [0, ?); decreasing (-?, 0] C. increasing: (-?, 0]; decreasing [0, ?) D. increasing: [-2, ?); decreasing: never