Mathematics

Hard radical problem help

problem: √ √2y - √y-1 = 1 Step 1: (√ √2y - √y-1)^2 = (1)^2 Step 3: √2y - √y-1 = 1 I cant seem to figure out the rest of the problem can you please help me-Starting from where you left off: √(2y) - √

Can anyone show me the step by step process on how to solve this difficult integral by parts

I want to do a Laplace transform and Im having difficulty solving this integral. integral[0,infinity] (t*(e^(a-s)*t))-u=e^(a-s)*t, v=t , denote integral by S. S(u*vdt)=u*v-S(u*vdt) u=(1/(a-s)*e^(a-s

What is the derivative of 2xe^-x^2

Derivative of 2xe^(-x^2)-Use product rule: y = 2xe^(-x²) dy/dx = d/dx (2x) * e^(-x²) + 2x * d/dx (e^(-x²)) dy/dx = 2 * e^(-x²) + 2x * -2x e^(-x²) dy/dx = 2 e^(-x²) - 4x² e(-x²) dy/dx = 2 e^(-x²) (1

How to find the cumulative distribution, mean, median & mode for this table

The cumulative GPA of graduating seniors at a small liberal arts college is shown in the following table. GPA: 3.25-4.00 2.50-3.24 1.75-2.49 1.00-1.74 0.00-0.99 Interval Mean: 3.625 2.87 2.12 1.3

Challenging question

There are 100 bulbs and each having separate switches and on at the initial stage. First man enters and switches off the bulbs, which are the multiples of 2. Next man enters and switches on the bulbs

Evaluate the following integrals using substitution

1. ʃxsin(x²)dx 2. ʃsin(π)t dt 3. (cos√t) /√t dt 4. ʃ (a+bx²)/√(3ax+bx³)dx u = 3ax+bx³-Hello, ∫ x sin(x²) dx = rewrite it as: ∫ sin(x²) x dx = let: x² = u differentiate both sides: d(x²) = du

Determine all ring homomorphisms from Z(+)Z to Z.

Answer is (a,b)-->a, (a,b)-->b, (a,b)-->0.Any help would be great!-Let F: Z x Z --> Z be a ring homomorphism. Since Z + Z is generated by (1, 0) and (0, 1), it suffices to find to find F(1, 0) and F(

What is your average amount in your account over one year

If you invest $50,000 at 10% interest compounded continuously, what is the average amount in your account over one year? I thought the equation was Pe^rt but that does not give me the correct answer.

How to solve this math problem

solve for x and y if 2x+y=12 xy=16-2x+y=12, so y=12-2x Substituting into the other equation: x(12-2x)=16 12x-2x^2=16 2x^2-12x+16=0 x^2-6x+8=0 (x-2)(x-4)=0 x=2 or x=4 To get y, you know that y

Rectangular wall is 4m wide n2.5m high1litre paint is needed to cover the wall.find thicknes of coat of paint

pls help i dont understand what formula to use. the answer should be in millilitre.thanks-1 Liter is = 1,000 cubic centimetres (cm3)= 1,000 * (10*10*10) (mm3) Area = 4m*2.5m=4*100cm*2.5*100cm=4*100*1

Properties of Functions Question

Does f(x + h) = f(x) + f(h)?-Sometimes, but not always. For example, that statement is true for f(x) = x, since for any a, bf(a+b)=a+b=f(a)+f(b). However, the statement is false for f(x) = x^2. Consi

College Algebra: 4/(10^(2x)-7)=2

It says round to 3 decimal places. Now the book says x=0.477 but i got something different? I ended up with 2x=(log18)/(log20) which gives me x=.482 Can someone give me an answer if mine is wrong or

Can you show me how to do this math 0990 problem

The length of the longer leg of a right triangle is two meters less than the length of the hypotenuse. If the shorter leg is 8 meters long, what is the length of the longer leg?-a² + b² = c² (Pythagor

Can anyone answer this past gcse paper question

first open this link: http://www.rewardinglearning.org.uk/qualifications/results.aspx?g=2&t=0&s=0&v=0&f=0&q=167&d=d#pastpapers Then on the page where it says PAST PAPERS (in blue writing) click on i

Help me with Quadrant Changing!

So I got (4, 585º) as an answer for a question, but because the degree exceeds 360º I need to do a quadrant change for the. What would I get? Please show work!!! Thank You!!!! :D-every time the degree