Find the sum of the following arithmetic series 7+13+19+25+...+85

Step-by-step explanation:

Given Arithmetic series is:

7+13+19+25+...+ 85

Here,

First term a = 7

Common Difference d = 13 - 7 = 6

last term

First let us find the number of terms in given series.

Hence, given series has total 14 terms.

Sum of n terms of an Arithmetic series is given as:

do you mean add both of the equations together

because if you do the answer is 10x-5

step-by-step explanation:

given hc ∥ gd.¯¯¯¯¯¯which statement is true

step-by-step explanation:

∠cbe and ∠deb are same-side interior angles