Let f(x) = ln(x^2 + 9) Find the first two derivatives of f . Find the critical numbers of f . Find the intervals where f is increasing and decreasing. Determine if the critical numbers of f correspond with local maximums or local minimums. Find the intervals where f is concave up and concave down. Find any inflection points of f
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Compute the Maclaurin series for the following functions: (a) f(x) = (2 + x)^5 (b) f(x) = (x^3) * sin(x^2)
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Suppose f(x) is a rational function in which the degree of the numerator is greater than the degree of the denominator. To integrate f(x), the first step is
a) Factor the denominator into distinct linear factors
b) Factor the numerator into distinct linear factors
c) Polynomial long division
d) Make a rationalizing substitution
e) None of the above
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A company manufactures and sells x television sets per month. The monthly cost and price-demand equations are C(x)=75,000+40x and p(x)= 300-x/30 , 0 less than or equal to x less than or equal to 9000.
(A) Find the maximum revenue.
(B) Find the maximum profit, the production level that will realize the maximum profit, and the price the company should charge for each television set.
(C) If the government decides to tax the company $6 for each set it produces, how many sets should the company manufacture each month to maximize its profit? What is the maximum profit? What should the company charge for each set?
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Given : the plane region R is bounded by the curves ? = 0 , ? = 2 , ? = 3√?
2-Compute the volume of the solid that has the region R as the (horizontal) base; vertical slices parallel to the ?-axis are squares
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use the a) midpoint rule, b) Trapezoidal rule, and c) the Simpsons rule to approximate the given integral with the value of n and round to 4 decimal places
integral (from 0 to 1) e^-x^2 dx, n = 10
show work please
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a) State the definition that a function f(x) is continuous at x = a. b) Let f(x) = ax^2 + b if 0 < x ≤ 2
18/x+1 if x > 2
If f(1) = 3, determine the values of a and b for which f(x) is continuous for all x > 0.
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2.) g(x) = 4√x − x2
2f.) Label each critical value as a local maximum or minimum. Show Work.
Local Maximum(s) at x = ____________ Local Minimum(s) at x = ____________
2g.) Determine the intervals in which y=g(x) is increasing/decreasing
g(x) increasing: ____________ g(x) decreasing: _
2h.) Determine the intervals in which y=f(x) is concave up/concave down.
g(x) concave up: ____________ g(x) concave down: ____________
2i.) Find the point(s) of inflection
Point(s) of Inflection at x = ______
2j.) lim x→∞ g(x) = _______
2k.) lim x→−∞ g(x) = _______
2l.) Use everything you determined in #2a-k to draw a nice graph. (Draw your own axes)
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5.22.
Determine the standard form of the following conics:
(a) 13x^2 − 10xy + 13y^2 − 12√2x + 60√2y + 72 = 0.
(b) 6x^2 + 12xy + 6y^2 − 35√2x − 37√2y + 118 = 0.
(c) 11x^2 − 6x√3y − 6x√3 + y^2 + 2y − 63 = 0
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Solve the following system of equations using LU factorization without partial pivoting:
2x1 - 6x2 - x3 = -38
-3x1 - x2 + x3 = -34
-8x1 + x2 - 2x3 = -20
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An equation of a hyperbola is given.
y^2/36 - x^2/64 = 1
(a) Find the vertices, foci, and asymptotes of the hyperbola. (Enter your asymptotes as a comma-separated list of equations.)
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asymptotes |
(b) Determine the length of the transverse axis.
(c) Sketch a graph of the hyperbola.
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A pig farmer wants to enclose a rectangular area and then divide it into four pens with fencing parallel to one side of the rectangle (see the figure below). There are 900 feet of fencing available to complete the job. What is the largest possible total area of the four pens?
The answer is not 40500 ft^2.
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Find the center of mass of a thin plate of constant density delta covering the given region. The region bounded by the parabola x= 6y^2 -3y and the line x= 3y. Please post all steps.
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A Toyota Prius is a full hybrid electric automobile that costs $30,000 with 55 mpg. A Toyota Yaris is a normal car that runs on gasoline, and costs $15,000 with 35 mpg. After 100,000 miles, the Prius requires a battery replacement that costs $3,000. Suppose you drive 10 miles per day and 1 gallon of gas costs $4. How much would you have to spend on gas for each car after 10 years? Which car would cost you more money after 10 years? How much different are the gas prices between the Prius and the Yaris (10 miles per day x 10 years)?
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1. A 100-gallon tank initially holds 50 gal of brine containing
5 pounds of salt. Brine
containing 1 pound of salt per gallon enters the tank at the rate
of 4 gal/s, and the
well-mixed brine in the tank flows out at the rate of 3
gal/s.
(a) How much salt will the tank contain at the time when the tank
is full of brine?
(b) If the tank had an infinite capacity, what is the maximum
amount of salt that
it could contain?
4. y' − 2xy = 8x. find a general solution.
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