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Solve, using the quadratic formula, the equation x^2 +2x=35

suppose you have a general quadratic equation in the form ax² + bx + c = 0, then the solutions to this quadratic equation can be found by the equation x = (-b +/- (b²-4ac)^1/2

Answered by Antonia S. • Maths tutor

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Since the essay portion is completely blind, how do I prepare for it?

The LNAT essay is not likely to be anything like an essay that you've written for any of your other subjects. You can't revise for it in the traditional sense. However, that does not mean that you cannot ...

Answered by Daniel J. • LNAT tutor

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Given that x = 4sin(2y + 6), Find dy/dx in terms of x

x = 4sin(2y + 6)dx/dy = 4(2)cos(2y + 6)dx/dy = 8cos(2y + 6) ==> dy/dx = 1/8cos(2y + 6)sin²(2y + 6) + cos²(2y + 6) = 1cos(2y + 6) = √(1 - sin²(2y + 6))cos(2y + 6) = √(1 ...

Answered by Shubham P. • Maths tutor

8390 Views

Write a short program to print all the even numbers 1 to 100

To begin with, we will need to make a loop which iterates (loops) 10 times, which we can use the for statement for:for value in range (1,101): // do something - this is a comment Note, here we use the ran...

Answered by Sam P. • Python tutor

3527 Views

Find the area under the curve y=xexp(-x)

first recognise ‘area under’ = integrationfunction is a product so by partsset x=u; exp(-x)=dv/dx integral(udv/dx)=uv-integral(vdu/dx)
du/dx =1; v=-exp(-x)ans=(x.-exp(-x))-integral(1.exp(-x)dx)ans=-x...

Answered by • Maths tutor

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