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Express 2(x-1)/(x^2-2x-3) - 1/(x-3) as a fraction in its simplest form.

The answer is 1/(x+1)I began by factorising the denominator of the first fraction:2(x-1)/(x^2-2x-3) - 1/(x-3) = 2(x-1)/(x-3)(x+1) - 1/(x-3) Next, I multiplied both the numerator and the denominator of the...

Answered by Devan R. Maths tutor
7710 Views

There are 11 counters in a bag. 8 of them red, 3 of them green. Neville takes 2 counters from the bag. Work out the probability that Neville takes one counter of each colour.

8/113/10=24/110=12/553/118/10=24/110=12/55
Probability = 24/55

Answered by Kieran H. Maths tutor
11919 Views

What is the equation of the tangent to the curve y=x^3+3x^2+2 when x=2

dy/dx=3x^2+6xx=2m=3(2)^2+6(2)=24at x=2 y=22(2,22)y-22=24(x-2)y-22=24x-48y=24x-26

Answered by Kieran H. Maths tutor
3377 Views

What is 700 million in standard form?

The number 700 million can be written out in its longer form of 700,000,000.We know that a number in standard form is written in the form of a x 10n, where a is a number greater than or equal t...

Answered by Carter B. Maths tutor
32032 Views

Find the equation of a straight line given two of its points (1,3) and (-2,5). Write your answer in the form y = mx + c.

There are two main steps required to find the equation of a straight line: Finding the gradient of the line AND the slope intercept

Answered by Stanislaw C. Maths tutor
4113 Views

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