Solve the problem.At what points on the graph of y = 13x - x2 is the slope of the tangent line equal to 1?
A. (1, 12)
B. (6.5, 42.25)
C. (6, 42)
D. (12, 84)
Answer: C
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Provide an appropriate response.A catamaran is running along a course with the wind providing a constant force of 70 lb. The only other force acting on the boat is resistance as the boat moves through the water. The resisting force is numerically equal to two times the boat's speed, and the initial velocity is 1 ft/sec. What is the maximum velocity in feet per second of the boat under this wind?
A. The maximum velocity occurs when 
= 18 or v = 0 ft/sec
B. The maximum velocity occurs when 
= 35 or v = 0 ft/sec
C. The maximum velocity occurs when 
= 0 or v = 18 ft/sec
D. The maximum velocity occurs when 
= 0 or v = 35 ft/sec
Write the quotient in standard form.
A. 1 + 
i
B. 1 + 
i
C. 
+ 
i
D. 
- 
i
Multiply and simplify any radicals in your answer. Assume that all variables represent positive real numbers.(9x
+ 5
)(9x
- 5
)
A. 486x2 - 25x
B. 81x
- 25
C. 486x2 - 90x
+ 25x
D. 81x
+ 45x
+ 25
Complete the identity.
= ?
A. 2 B. 1 C. 0 D. -1