Use a graphing calculator to find the location of all relative extrema (to three decimal places).f(x) = x4 - 3x3 - 21x2 + 74x + 4
A. Relative maximum at x = 1.629; Relative minima at x = -3.028 and x = 3.744
B. Relative maximum at x = 1.604; Relative minima at x = -3.089 and x = 3.735
C. Relative maximum at x = 1.641; Relative minima at x = -3.124 and x = 3.825
D. Relative maximum at x = 1.69; Relative minima at x = -3.132 and x = 3.785
Answer: B
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Provide an appropriate response.Find the sum of the series 
by expressing 
as a geometric series, differentiating both sides of the resulting equation with respect to x, and replacing x by 
.
A. 
B. 4
C. 
D. 
Write the number as indicated.A recent census confirmed that the population of a major city is 4,600,007. Write the number in words.
A. Four million, six hundred thousand, seventy B. Four million, six hundred thousand, seven C. Four million, six thousand, seven D. Four million, six thousand, seven hundred
X is a continuous random variable with mean ? and standard deviation ?. Find ? and ?, and then find 
ifX is uniformly distributed on [-6, 6].
A. ? = 0; ? = 2
; P(? - ? ? X ? ? + ?) = 
B. ? = 0; ? = 
; P(? - ? ? X ? ? + ?) = 
C. ? = 0; ? = 2
; P(? - ? ? X ? ? + ?) = 
D. ? = 0; ? = 
; P(? - ? ? X ? ? + ?) = 
Find the length of the curve. Select the correct answer.
a.10.2222
b. 25.055
c. 13.05
d. 36.05
e. None of these