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Solve ((3x+2)/(x-1)) +3 =4

The equation looks horrible to start so we need to tidy it up. We do this by firstly getting rid of the fraction. This means that we need to multiply everything else by the denominator (which in this case is...
RH
Answered by Rebecca H. • Maths tutor
9466 Views

The line AB has equation 3x + 5y = 7. Find the gradient of line AB.

First, let's make y the subject of the equation. Let's achieve this by having only y on the left hand side of the equation. To do this we need to minus 3x from both sides of the equation. This leaves us with...
TO
Answered by Tom O. • Maths tutor
6105 Views

Solve 5x – 2 > 3x + 11

Let's temporarily replace the inequality sign ">" with "=". This gives us: 5x - 2 = 3x + 11. If we subtract 3x from both sides we are left with: 2x - 2 = 11. If we add 2 to both sides,...
TO
Answered by Tom O. • Maths tutor
20901 Views

The volume of liquid in a container is given by v=(3h^2+4)^(3/2)-8, find dV/dh when h = 0.6

Chain rule: dV/dh=9h(3h^2+4)^(1/2) sub in h=0.6 , dV/dh = 12.17
JH
Answered by Johnny H. • Maths tutor
9496 Views

Given that y=(4x^2)lnx, find f"(x) when x=e^2

Product rule: first order derivative = 8xlnx+4x Second order derivative = 8lnx+12 Sub in e^2 , 16lne + 12 = 24
JH
Answered by Johnny H. • Maths tutor
5718 Views