Find the derivative.y = (x + 8)(8x + 9)
A. 16x + 145
B. 0
C. 16x + 73
D. 8
Answer: C
Mathematics
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Plot the point whose polar coordinates are given.(2, 2?/3)
A. 
B. 
C. 
D. 
Mathematics
Use dimensional analysis and the exchange rate below to convert. Round to the nearest hundredth, if necessary. 
Convert 800 £ (Great Britain pound) to € (euros).
A. 1,242.54 € B. 533.97 € C. 515.07 € D. 829.36 €
Mathematics
Find zw or 
as specified. Leave your answer in polar form.z = 5(cos 200° + i sin 200°)w = 4(cos 50° + i sin 50°)Find 
.
A. 
(cos 150° + i sin 150°)
B. 
(cos 40° + i sin 40°)
C. 
(cos 150° + i sin 150°)
D. 
(cos 40° + i sin 40°)
Mathematics
Solve the problem.Chris rode his bike at an average speed of 17.9 miles per hour for 4 hours. How far did he cycle? Use the distance formula 
A. 17.9 mi B. 4.5 mi C. 89.5 mi D. 71.6 mi
Mathematics