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Can you make use of the normal curve to find for the probability of a large value? How?

The base of the rectangle is changing at the rate of 3in/min. if its height remains constant, determine the rate of change of its perimeter with respect to time?


Suppose 𝑓 is odd and differentiable everywhere. Prove that for every positive



number 𝑏, there exists a number 𝑐 in (βˆ’π‘, 𝑏) such that 𝑓′(𝑐) = 𝑓(𝑏)/𝑏.

The Altitude of a triangle is increasing at a rate of 8cm/s while its area is increasing at the rate of 12cm^2/s. At what rate is the base of the triangle changing when the altitude is 20 cm and the area is 100 cm^2 ?


A cone of radius π‘Ÿ centimeters and height β„Ž centimeters is lowered point first at


a rate of 1 cm/s into a tall cylinder of radius 𝑅 centimeters that is partially filled with


water. How fast is the water level rising at the instant the cone is completely


submerged

If 𝑓(π‘₯) is a differentiable and 𝑔(π‘₯) = π‘₯ 𝑓(π‘₯) use the definition of the derivative to show



that 𝑔′(π‘₯) = π‘₯𝑓'(π‘₯) + 𝑓(π‘₯).

Evaluate the following limits, if they exist, where ⌊π‘₯βŒ‹ is the greatest integer function.



(a)lim ⌊2π‘₯βŒ‹/π‘₯


π‘₯β†’0



(b) lim π‘₯ ⌊1/π‘₯βŒ‹


π‘₯β†’0

How may revolutions per minute must the body make about vertical axis so that the cord make an angle of 45 with the vertical


Let 𝑓(π‘₯) = ⌊π‘₯βŒ‹ + βŒŠβˆ’π‘₯βŒ‹, where ⌊π‘₯βŒ‹ is the greatest integer less than or equal to π‘₯.


(π‘Ž) For what values of π‘Ž, does limπ‘₯β†’π‘Ž


𝑓(π‘₯)exist?


(𝑏) At what numbers is 𝑓 discontinuous?

Suppose we experiment with an Atwood Machine consisting of two masses m


and 2m connected by an inextensible non-slip string running over a pulley of


radius a and mass 4m, as shown below.


) Briefly discuss why no work is done by the forces of constraint. (5)


(d) What is the total energy of the system? (2)


(e) Find the acceleration dv/dt of the blocks.

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