Perform the operation and give the answer in the same numeration system. Write the answer as simply as possible.Add CCXXXIV and CCLXVI
A. D
B. CDXC
C. DX
D. CDLLXL
Answer: A
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Solve the problem.A satellite in a circular orbit 822.8 mi above the earth makes one complete orbit every 85.44 min. What is its linear velocity? Use 3963 mi for the length of the radius of the earth.
A. 60.51 mi/min B. 351.9 mi/min C. 56.01 mi/min D. 408,900 mi/min
Solve the problem.Find the measure of an angle such that the difference between its supplement and 3 times its complement is 50°.
A. 83° B. 70° C. 35° D. 166°
Solve the problem.The owner of a video store has determined that the cost C, in dollars, of operating the store is approximately given by 
where x is the number of videos rented daily. Find the lowest cost to the nearest dollar.
A. $512 B. $656 C. $872 D. $728
Express the sum using summation notation.32 + 63 + 94 + ... + 249
A. 
B. 
C. 
D. 