# Posts by soffy

Total # Posts: 14

chemistry
if 8 moles of fructose are fermented and 320g of ethanol is obtained,what is the yield of the fermentation

calculus
find the derivative of the function f(x) = e^(3x) sec (7x)

calculus
find the derivative of the function f(x) = x^2 cos (7x)

calculus
a university alumni group wishes to provide an annual scholarship in the amount of 1500 beginning next year. if the scholarship fund will earn an interest rate of 8%/year compounded continuously, find the amount of the endowment the alumni are required to make now.

calculus
to find the possible relative extrema of the function f(x,y) subject to the constraint g(x,y)=8, the lagrangian function based on the lagrange multiplier λ is given by....

calculus
find the average value of the function f(x,y)=e^(-x^2) over the plane region R which is the triangle with vertices (0,0), (1,0) and (1,1)

calculus
according to data released by the chamber of commerce of a certain city, the weekly wages of female factory workers are normally distributed with a mean of 575 and a standard deviation of 50. Find the probability that a female factory worker selected at random from the city ...

calculus
The cross-section of a drain is a trapezoid. The sides and the bottom of the trapezoid each have a length of 10 feet. Determine the angle θ such that the drain will have maximal cross-sectional area.

calculus
A police cruiser hunting for a suspect pulls over and stops at a point 10 ft from a straight wall. The flasher on top of the cruiser revolves at a constant rate of 75 /second, and the light beam casts a spot of light as it strikes the wall. How fast is the spot of light moving...

calculus
find the derivative of the function f(x)= tan (10x^2)

calculus
find the derivative of the function f(x) = e^(3x) sec (7x)

calculus
Use the Newton method to approximate the indicated zero of the function. Continue with the iteration until two successive approximations differ by less than 0,0001 the zero of: f(x)=x^3+2x^2+x-7 between x=1 and x=2, x0=1

calculus
find the taylor series f(x)1/2(e^x + e^-x) ;x=0

calculus
factory worker wages, according to data released by city chamber of commerce, the weekly wages of factory workers are normally distributed according to the probability density function f(x)= (1/50√2π)e^((-1/2)((x-500)/50)^2) find the probability that a worker ...

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