Use the maximum/minimum finder on a graphing calculator to determine the approximate location of all local extrema.f(x) = x4 - 3x3- 21x2 + 74x + 76
A. Approximate local maximum at 1.618; approximate local minima at -3.129 and 3.737
B. Approximate local maximum at 1.657; approximate local minima at -3.103 and 3.76
C. Approximate local maximum at 1.604; approximate local minima at -3.089 and 3.735
D. Approximate local maximum at 1.55; approximate local minima at -3.022 and 3.724
Answer: C
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For the curve r(t), write the acceleration in the form aTT + aNN.r(t) = 
(1 + t)3/2i + 
(1 - t)3/2j + 1tk
A. a = 
N
B. a = 1
T
C. a = 1
N
D. a = T + 1
N
The perimeter of a rectangular shaped photograph is 68 inches. The length is 2 inches longer than the width. What is the length of the photograph?
a. 16 b. 18 c. 20 d. 33
Divide and simplify to the form a + bi.
A. 
- 
i
B. 
+ 
i
C. 
+ 
i
D. 
+ 
i
Find the difference.
- 
A. - 
B. 
C. - 
D. 