Find the indicated sum.5 + 15 + 45 + 135 + 405 + ... + 5 ? 312
A. 3,985,807
B. 3,985,842
C. 3,985,805
D. 3,985,785
Answer: C
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Calculate the arc length of the indicated portion of the curve r(t).r(t) = (9t sin t + 9 cos t)i + (9 t cos t - 9 sin t)j ; -2 ? t ? 5
A. 189 B. 130.5 C. 261 D. 94.5
Graph the function f(x) over the given interval. Partition the interval into 4 subintervals of equal length. Then add to your sketch the rectangles associated with the Riemann sum 
, using the indicated point in the kth subinterval for ck.f(x) = x2 - 1, [0, 8], right-hand endpoint
A. 
B. 
C. 
D. 
Solve.You plan to start a consulting business for software programming. You deposit $320 at the beginning of each month into an account paying 4.85% compounded monthly. How much interest will be earned in the account after seven years?
A. $5,050.18 B. $5,179.23 C. $13,013.07 D. $12,820.52
Find the inverse of the given function.y = -5x + 2
A. y = - 
- 2
B. y = - 
- 
C. y = -5x - 2
D. y = - 
+ 