posted by .

Find the average value of the function i=15(1-e to the power of -1/2 t) from t=0 and t=4?
B.7.5(2+e^-2)
C.7.5(2-e^-2)
D.7.5(3-e^-2)

Find the rms value of the function i=15(1-e to the power of -1/2 t) from t=0 and t=4?

A.7.5 sqrt 1+4e^-2 -e^-4 <<<<my answer?
B.7.5 sqrt 4-2e^-2 + e^-4
C.7.5 sqrt 4+4e^-2 - e^-4
D.7.5 sqrt 5-2e^-2 + e^-4

For the first part, A is correct.
(see my response at
http://www.jiskha.com/display.cgi?id=1300011951
)

For the second part, A is also correct.

7.5sqrt(1+4e^(-2)-e^(-4))

thank you so much MathMate .

## Similar Questions

1. ### calculus

I have three questions I'm having a terrible time with: 1)Find, if possible, the absolute maximum value and where it occurs for f(x)=ln(xe^-x) on (0,infinity). 2)Find the value(s) of "c" guaranteed by the Mean Value Theorem for the …
2. ### calculus

is the function f(x)=x^2 increasing on decreasing at x = -1. can anyone please check my reasoning: the value of the derivative of the function at x=-1 is -2, so that means the slope of the tangent line to the graph at that is a negative …

Find the Avrage value of the function i=15(1-e to the power of -1/2 t) from t=0 and t=4?
4. ### calculus

find the rms value of the function i=15(1-e^-1/2t) from t=0 to t=4
5. ### calculus

Find the average value of the function f(x)=8x^2-5x+6 , on the interval [3,5]. Find the value of x-coordinate at which the function assumes it's average value. what is the average value = to ?
6. ### Calculus

I'm supposed to find the average value of the function over the given interval. f(x) = sin(nx), interval from 0 to pi/n, where n is a positive integer. I know the average value formula, and I know that the integral of that function …
7. ### Calculus

Find the extreme value(s) of the function f(x)=1/(1-x^2). I tried, and for the first derivative I got -1/(2*sqrt((1-x^2)^3)). I then found critical values of the function to be -1 and 1. However, the textbook says that the minimum …
8. ### Calculus

Find the average value of the function f(x) 8x^2-9x+8 on the interval [3,5]. Find the value of the x-coordinate at which the function assumes it's average value The average value is ?
9. ### Math - Answer Check

Write the composition function and then find the value. f(x) = 2x+3 g(x) = x^2 k(x) = square root(x - 4) 1. g(k(x)) g(k(20)) My answer: Function is x - 4, the value is 16. 2. f(g(x)) f(g(2)) My answer: Function is 2x^2 + 3, the value …
10. ### Calculus

Find the average value of the function over [1,3] and all values of x in the interval for which the function: f(x)= 4(x^2+1)/x^2 equals its average value.

More Similar Questions