Find the distance around the figure below by using the appropriate formula, if 
. Round approximate answers to two decimal places.
?
?
A. 35.71 in.
B. 51.42 in.
C. 41.42 in.
D. 25.71 in.
E. 71.42 in.
Answer: A
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Use the method of undetermined coefficients to solve the differential equation.y'' - 6y' + 13y = 2e-4x
A. y = e3x(C1 cos 2x + C2 sin 2x) + 
e-4x
B. y = C1e3x + C2e2x + 
e-4x
C. y = e3x(C1 cos 2x + C2 sin 2x) + 
e-4x
D. y = C1 cos 3x + C2 sin 2x + 
e-4x
Write in scientific notation.0.000937
A. 9.37 × 10-3 B. 9.37 × 10-5 C. 9.37 × 10-4 D. 9.37 × 104
Graph the circle.(x + 4)2 + y2 = 4
A. 
B. 
C. 
D. 
You are saving for your retirement by investing $500 per month in an annuity with a guaranteed interest rate of 6% per year. You increase the amount you invest at the rate of 3% per year. With continuous investment and compounding, how much will you have accumulated in the annuity by the time you retire in 35 years? Round your answer to the nearest cent. ?
A. $1,061,703.76 B. $130,012.45 C. $95,283.13 D. $10,617.04 E. $12,160,006.57