Comparing volumes Let R be the region bounced by the graph of f ( x ) = c x ( 1 − x ) and the x -axis on [0, 1]. Find the positive value of c such that the volume of the solid generated by revolving R about the x -axis equals the volume of the solid generated by revolving R about the y -axis
Comparing volumes Let R be the region bounced by the graph of f ( x ) = c x ( 1 − x ) and the x -axis on [0, 1]. Find the positive value of c such that the volume of the solid generated by revolving R about the x -axis equals the volume of the solid generated by revolving R about the y -axis
Solution Summary: The author calculates the volume of the solid when the region R is revolving about the x and y axes.
Comparing volumes Let R be the region bounced by the graph of
f
(
x
)
=
c
x
(
1
−
x
)
and the x-axis on [0, 1]. Find the positive value of c such that the volume of the solid generated by revolving R about the x-axis equals the volume of the solid generated by revolving R about the y-axis
2. Suppose the population of Wakanda t years after 2000 is given by the equation
f(t) = 45000(1.006). If this trend continues, in what year will the population reach 50,000
people? Show all your work, round your answer to two decimal places, and include units. (4
points)
3. Solve the equation, give the answer exactly (no calculator approximations), and show all your
work. (4 points)
log5 2x = 3
Let I =
f(x) dx, where f is the function whose graph is shown.
4
2
y
f
X
1
2
3
4
(a) Use the graph to find L2, R2 and M2.
R₂
M2
=
=
=
(b) Are these underestimates or overestimates of I?
O 42 is an underestimate.
O 42 is an overestimate.
◇ R2 is an underestimate.
OR2 is an overestimate.
OM2 is an underestimate.
○ M2 is an overestimate.
(c) Use the graph to find T2.
T₂ =
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A Problem Solving Approach To Mathematics For Elementary School Teachers (13th Edition)
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