What is the value of 7 + 4 x (4-(3x1) )

The answer is 11.

Explanation:

You have 7+4*(4-(3*1))

First you multiply 3*1 and you get 3. It will look like this: 7+4*(4-3)

Next you subtract 4 and 3 and you get 1 and it will look like this: 7+4*1

Then you will multiply 4 and 1 to get 4, and it will end up like this: 7+4

And finally you add 7 and 4 to get 11!

Hope this helps... :)

step-by-step explanation:

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for