Maths

Asked by Youcef

What's the nth term for 7,10,13,16?

3n + 4 Explained: 1. This sequence jumps up in 3's. 2. The three times table has a formula of '3n' 3. The terms in this sequence are four more than the terms in the three times table. 4. The answer would therefore be '3n+4'

Maths

Asked by Faz

The graph y=f(x) has a maximum point at (-3,4). Write down the coordinates of maximum point of the graph of y=-f(x).

Negative sign sorry

Maths

Asked by Youcef

What's the nth term for 7,10,13,16?

So first we need to find the term to term rule You can see that to get from 7 to 10 we add 3, to get from 10 to 13 we add 3, etc This becomes are coefficient of n (3n) Next we need to find out what we need to add to this number to get to the sequence 3*1+4= 7 3*2+4=10 So the nth term is 3n+4 where n is how far through the sequence you are

Maths

Asked by Youcef

What's the nth term for 7,10,13,16?

We can see that each term in the sequence we add 3. Also if we think about what number would come before 7, we can see 7-3=4. This tells us that the nth term is given by: 3n+4

Maths

Asked by Summer

I think of a number, multiply it by two, then subtract nine

If we assume x is the number , multiplying it by 2 will make it 2x, then subtract 9 2x - 9

Maths

Asked by Milan

Find x x^2 * 3x^-2 = 79

Are you sure that's a * not a + Because x²*3x-²=x²*3/x²= 3 Which isn't possible because 3≠79

Maths

Asked by Erica

Any idea what i could learn about in any subject just started home school I'm in year 8

BBC bitesize usually separates what you need to know by keystage (look at key stage 3) In terms of maths my class looked at fractions, decimals and percentages, area and circumference of circles, ratio and proportion, and basic algebra (simplifying expressions, solving with an unknown on one side, etc) Hope this helps

Maths

Asked by Abdullahi

Find nth term of this number sequence

So without the actual sequence I cannot tell you what the answer is I can help in terms of saying how to find the nth term of an arithmetic sequence and the ways you can find the nth term Arithmetic- this is a sequence where you're adding the same thing each time Start by finding the constant difference between each term (this becomes are coefficient of n) Then find out what you need to add t... more

Maths

Asked by Jenna

Make x the subject of the formula v=1+7x/x

Hi I'm guessing this is V=(1+ 7x)/x Start by multiplying through by x VX=1+7x We then put everything with an X term to one side and everything without an X term to the other This gives us Vx-7x=1 We then factorise to give us X(v-7)=1 Finally we must divide everything by (v-7) giving us X=1/(v-7) Hope this helps!