Use the formula S =n2 to find the sum of 1 + 3 + 5 + ... + 597 =

(Hint: To find n, add 1 to the last term and divide by 2.)

cassie19
Sep 6, 2017

#1

#3**+1 **

Hi Cassie,

I know you deleted this because you think it is wrong :)

[I know because Cassie told me]

Instead of dots it is better so just leave your answer and write underneath, or on top that you know it is wrong.

OR

If you really do not want it there then you can delete it but just write.

"Deleted becasue it is the wrong answer" or something like that.

Melody
Sep 6, 2017

#2**+2 **

Use the formula S =n2 to find the sum of 1 + 3 + 5 + ... + 597 =

(Hint: To find n, add 1 to the last term and divide by 2.)

n = [1 + 597] / 2 =299 terms. Or, [597 - 1] / 2 + 1 = 299 terms

Sum =[First + Last] / 2 x n

Sum = [ 1 + 597] / 2 x 299

Sum = 299 x 299

**Sum = 89,401**

Guest Sep 6, 2017