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Find the nth term of the sequence 7,11,15,19...

The nth term is a formula that allows us to find the value of a term in a sequence given its position in the sequence, whether this is the second term (n=2) or the millionth (n=1000000). In the above sequenc...
JB
Answered by Joe B. • Maths tutor
57901 Views

How to differentiate 2x^5-4x^3+x^2 with respect to x

Rule of differentiating is to times down by the power and then reduce it by one. Firstly we will handle the 2x ​5 ​: (2*5)x 5-1 =10x ​4 If we do this with the rest of the terms we get: 10x 4 -12x ​2 +2x
JP
Answered by Jodie P. • Maths tutor
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Solve simultaneous equations 3x+2y=9 5x-2y=7

Here we need to get rid of either the x or the y to find one solution to start us off. By adding these equations together we get: 3x+5x+2y-2y=9+7 The y's are eliminated to leave 8x=16. So x is 2! We can then...
JP
Answered by Jodie P. • Maths tutor
4755 Views

How are Xerophytes adapted to dry environments?

Start by considering what Xerophytes are, they are plants that live in dry conditions. What are the problems with dry conditions? Well, the big problem is maintaining a constant amount of water in the body. ...
LC
Answered by Luke C. • Biology tutor
32445 Views

What are the coordinates of the two turning points of the curve y = x^3+3x^2+3?

To find the turning points we need to find dy/dx and set it equal to zero. From there we can find the x coordinate and substitute it back into the origional equation to find the y coordinate. First we differ...
LD
Answered by Lauren D. • Maths tutor
9834 Views