# Yahoo Web Search

1. ### Would i plug u to the first equation?

...du = -40sin(z) dy/du = -40sin(4u) Now we have that. Now to get du/dx: u = e^(7x) Again, another chain rule here: u = e^z and z = 7x du/dz = e^z and...

4 Answers · Science & Mathematics · 03/10/2020

2. ### Derivative using Chain Rule?

(d/dx)f( u (ax)) = (df/du)(a du/dx) y = f( u ) = 9cos(-5u) dy/dx = -9sin(-5u)(-5)(du/dx) = 45sin(-5u)du/dx u = e^(-12x) du/dx = -12e^(-12x) dy/dx = -540sin(-5u)e^(-12x) Substituting for...

3 Answers · Science & Mathematics · 02/10/2020

3. ### Help understanding Probability ...?

Although P([I’ U S’] ∩ [I U S]) would make sense, P([I’ U ...

2 Answers · Science & Mathematics · 18/10/2020

4. ### If P(A) = .60 and P(B) = .30, and A and B are independent, what is P(A or B)?

... or B ) is the same as P(A U B)    This is a general rule  P...which must have the same results.    P(A U B) =    P(A) + P(B...

2 Answers · Science & Mathematics · 06/10/2020

5. ### derivative of (x^2 + 4x) ^(1/3)?

... the chain rule: y = (x² + 4x)^(1/3) Set this up as: y = u ^(1/3) and u = x² + 4x The chain rule is: dy/dx = dy/du * du...

8 Answers · Science & Mathematics · 13/10/2020

6. ### Finding equation of curve from min point and y intercept ?

Yes. And then you determine the leading coefficient so the y-intercept becomes 25. f(x) = a(x+2)^2 + 13 f(0) = 25 a = 3 There are many " U shape" curves and I assume you do want the parabola.

1 Answers · Science & Mathematics · 07/10/2020

7. ### CALCULUS HELP?

...x + 2) to get this first derivative we need to use the quotient rule: if f = u /v, then f' = ( u 'v - uv') / v² So we can set up our...

1 Answers · Science & Mathematics · 01/10/2020

8. ### Calculus help?

y = f( u ) = 11u-1; u = g(x) = -(8/7)x^6; (du/dx) = {d/dx}g(x) = -(8/7)*6x^5 = -(48/7)x^5; (dy/dx) = (dy/du)(du/dx) = (11)[-(48/7)x^5] = -(11*48/7)x^5 = -(528/7)x^5.

2 Answers · Science & Mathematics · 02/10/2020

9. ### I have done this problem so many times. What am I doing wrong? Could anyone help? Thanks!?

...'s see what I get. dy/dx = dy/du * du/dx we have: y = √(5u) and u = sin(x/5) to get dy/du, we need to chain rule that: y = √v and v = 5u dy/du = dy...

3 Answers · Science & Mathematics · 20/10/2020

10. ### Derivatives?

Solve this term by term. First term - chain rule x² sin(3x) = u d/du(e^ u ) = e^ u d/dx [e^( u )] = d/du(e^ u ) * du/dx  use product rule to find du...

2 Answers · Science & Mathematics · 03/10/2020