I'm not sure how to start this one. All I know is sec^2 is (1/cosx)^2 is this right?

I'm not sure how to start this one. All I know is sec^2 is (1/cosx)^2 is this right?

This is an equation used in a synthetic network generator 〈k〉 = ((2*π^(D/2)*δ*μ*I1) / Γ(D/2) ) * 〈κ〉^2 where 〈k〉 is the desired average degree of the...

Please help me differentiates this.

A tarp has the dimensions of 30cm and 310cm This tarp is held up by a rope in the centre of it, find the maximum usable area underneath it for a 173cm tall person.

A 5000 seat theatre has tickets for sale at $25 and $40. How many tickets should be sold at each price for a sellout performace to generate a total revenue of $141,500?

The Megabus was driving on 101 when it suddenly braked, having a constant deceleration of 18 ft/second-squared. It produced skid marks that measured 190 feet before coming to a complete stop. How...

Find the derivative of y = coth-1 (sec(x)). Simplify if possible. I applied the Chain Rule. -sech(x)tanh(x) _____________ (1 - sec(x)2)1/2 I don't...

Suppose that Alice and Bob both begin driving cars at 10:00pm Friday evening, and that Alice is initially 10 miles to the East of Bob. If Alice is driving North-East at a speed of 50√ 2 miles per...

3. A bacteria culture initially contains 100 cells and grows at a rate proportional to its size. After an hour the population has increased to 420. (a) Find an expression for the number of...

A lighthouse is stationed at a point P some distance away from the nearest point Q on a straight shoreline. It's light is making 3 revolutions per minute. It is found that the beam of light is moving...

A lighthouse is stationed at a point P some distance away from the nearest point Q on a straight shoreline. It is found that the beam of light is moving alon the shore at a rate of 220pi m/s when...

Differentiate y = x/e^x

I can't figure out how to get that pesky zero out of the denominator!

I know I need to use the chain rule but I never get the right answer when I try on this problem

let f(x) x2 - 5x + 6/x2 - 2x a. Calculate lim x -> 0- f(x), lim x -> 0+ f(x), lim x -> 2- f(x), and lim x -> 2+ f(x) b...

Find the horizontal limit(s) of the following function: f(x)= (9x^3-8x^2-8x)/(7-8x-7x^3) I know that one of the horizontal limits is the -9/7, but I'm still missing one...

If the substitution √(X)=sin y is made in the integrand of: (top of the integral sign is (1/2), bottom of the sign is 0) ∫ ( √(X) )/( √(1-X) )dx, the resulting integral is_____________. A...

Consider the transformation x=vcos(2piu), y=vsin(2piu) a)Describe the image S under T of the unit square R={(u,v,)|0<u<1,0<v<1} b)Find the area of S

Suppose a nurse records the temperature of healthy men and women. The table represents the mean and standard deviations of the data. ...

At noon, ship A is 30 nautical miles due west of ship B. Ship A is sailing west at 20 knots and ship B is sailing north at 18 knots. How fast (in knots) is the distance between the ships changing...

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