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Find the domain of the function f ( x ) = a r c t a n x A . ( - 7 , 8

Find the domain of the function f(x)=arctanx
A.(-7,8)
B.|-1,1|
C.(-,)
D.0,
E.{}
The graph of a function f consists of a semicircle and two line segments as shown. Let g(x)=1xf(t)dt. Answer the questions 15-17 according to the figure below.
Find g(3)
A.-2
B.-1
C.0
D.1
E.12
Find all values of x on the open interval (-3,4) at which g has a relative maximum.
A.x=4, B.x=3
C.x=2
D.x=1
E.x=-1
Find the x-coordinate of each point of inflection of the graph of g on the open interval (-3,4).
A.x=-1,x=2
B.x=1
C.x=2
D.x=3
E.g has no inflection point
The graph of the derivative of h(z) is aits.
Which of the following conld be the graph of h(x)?
A farmer has 80m of fence to enclose a rectangular area against a straight river. He only needs to fence in three sides. What is the maximum area (in m2) that be can endose with his materials?
A.160
B.320
C.960
D.3200
E. None How fast (in cm/s) is the rafirs imcressing thum the mains of the ballocm is 10cm?
A.1?=
B.2x
c.12x
D.13x+-13x
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