Chapter3: Functions
Section3.2: Domain And Range
Problem 61SE: The cost in dollars of making x items is given by the function Cx)=10x+500. a. The fixed cost is...
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Question
Answer all three questions otherwise don't solve it.
Calculus
Question 3
Find the equation of a straight line perpendicular to the tangent line of the parabola y=x2+1 at x = 1 .
Question 5
In some manufacture company, which sales certain product, the price function p and the cost function C (in dollars) are given by:
px=5-0.002x
Cx=3+1.1x
Find the expressions for marginal revenue, marginal cost, and marginal utility. Determine the level of output that yields the maximum total utility.
Question 6
The outline of a rugby ball has the shape of x230+y216=1 . The ball itself is the revolution of this ellipse about the x-axis. Find the volume of the ball.
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