 Lv 31,392 points

# Alex

• ### Can I order alcohol the night before my 21st birthday?

My birthday is in five weeks and I wanted to know if I could order alcohol in a bar before the midnight strikes.

I live in California.

Also, should I go to Las Vegas?! I'm thinking about it, but a lot of my friends are underage like 20 or 19.

• ### How do I solve this integral problem?

Do I need to use the U-substitution? I need to brush up on these because I forgot even though calc 1 was like a few weeks ago.

The problem is the integral from -1 to 1. pi( 2 - x^2)^2 dx

• ### Can the light reactions in photosynthesis occur without the Calvin Cycle?

Would the light reactions, with continual light, be able to continually produce ATP and NADPH?

• ### how many solutions does this equation have?

cos4x = 0,95 - x^2

• ### What does it mean to find the left hand solution for newton's method?

The equation is :

-x^2 + 4x - 1 = 0, x = 0

And for this other example it asks me to find the negative solution:

x^4 - 3 = 0, x = 1

• ### How do I compute this indefinite logarithmic integral?

(x^2) / (3x - 1) dx

OF course, I was able to find u(x) and the derivative. But that is all.

• ### How do I solve this logarithmic differentiation?

The equation is f(t) = (t+5)^6 (t-3)^4

I used the log rule where you add these together, and then move with the power rule to get those exponents in front. The last step I can't figure out how the help does it.

This is how far I get: f '(x) / f (x) which is 6(1) /(t+5) + 4(1) /(t-3)

• ### How do I simplify this natural log?

The natural logarithm is: ln (z^4 + z^2)

It has been awhile, so I can't solve this one.

• ### How do I solve this trig sum formula?

sin(2pi/5) cos(4pi/5) + cos(2pi/5) sin(4pi/5)?

I'm supposed to get the exact value. So a decimal value or the one in fractions?

• ### How to do this newton's method?

My root is x^2 - 9x - 3 in the range of 3 < x < 13

within

3 decimal places of accuracy (that is, within 0.0005).

So I have to choose an initial point on the x-axis, then type in the equation tangent to the graph of the function (x-not, f(x-not))

I cant find the symbol for that x and the subscript of zero.

But anyway, how do we do this part?

I was successful with someone when we did the the closest approximation when you keep doing it until you get close enough.

• ### What are the x-intercepts and the vertex of this parabola?

x^2 + 2x - 15

• ### What is the antiderivative of this integral?

x^2 ( x^4 - 1/x^4) dx =

I'm asked to compute this integral. Im like.....cause these are a little harder.

• ### What is the second derivative of cos(pi t) + 2t^3?

I'm supposed to find the displacement for velocity and acceleration when t = 1sec. For velocity ( or the first derivative) I got 6.

I can't figure out the acceleration.

• ### What is the second derivative of this function?

f(x) = x / (x + 1)

• ### What is the derivative of this piecewise function?

e^x if x in (-2, 0)

ln(x + 1) + 1 if x in (0, 1)

ln(2e/x) if x in [1, 3)

I've been able to solve the given values for the derivative for the first and second.

But I need to find the derivative of f at x = 1

• ### What is the second derivative of cos(x^2)?

Got lost on after the first derivative.

• ### What is the chain rule of this function?

sin (x^2) cos (2x)

The thing that confuses me sometimes is the fact that there is an exponent for one, and the other has a 2x.