Find the specified quantity.Find the amplitude of y = -3 cos 
.
A. -6
B. 
C. 3
D. 2
Answer: C
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Find the length of the curve.y = 
, 0 ? x ? 
A. 3
B. 9
C. 1
D. 
Find all the roots of the complex number. Put answers in standard form.Cube roots of -8j
A. 2j, - 
+ j, - 
+ j
B. 2j, - 
- j, 
- j
C. -2j, 
- j, 
- j
D. -2j, 
+ j, 
+ j
Solve the problem.The position of an object moving in a straight line is given by s = 2t2 - 3t, where s is in meters and t is the time in seconds the object has been in motion. How long (to the nearest tenth) will it take the object to move 7 meters?
A. 8.0 sec B. 2.6 sec C. 2.8 sec D. 7.7 sec
Find the critical point(s) of the function. Then use the second derivative test to classify the nature of each point, if possible. Finally, determine the relative extrema of the function.
?
?
A. 
is the critical point, it is impossible to determine the relative extrema of the function
B. 
is the point of minimum, 9 is the relative minimum
C. 
is the critical point, the function has neither a relative maximum nor a relative minimum at this point
D. 
is the point of maximum, 9 is the relative maximum
E. no critical points