Find the sum of the summation of 2 i minus 9, from i equals 3 to 10.

Step-by-step explanation:

First we write the problem in summation notation.

The sum of the summation of 2 i minus 9, from i equals 3 to 10 is:

Now we solve the expression

Sum = 32

Step-by-step explanation:

We are given the following data and we are to find its sum:

Sum: S

S = 32

system of linear equation

step-by-step explanation:

as given in the data

a= 20 , b= -12

let us suppose that it is a straight line equation

now we know the formula for the system of linear equation

b= ma + c )

here m is slope of a straight line which is equal to formula

m=   (ii)

and here c is a constant

now putting the value of a and b in equation (ii)

m=

m=

putting the value of a,b and m in equation (i) gives us

-12 = + c

-12=-12 + c

adding 12 to both sides

-12 +12 = -12 +12 +c

0 =c

or c=0

as the value of the constant is zero which gives us that it is a linear equation and this order pair satisfies the system of linear equations.

4n=2m

ratio of m to n: 2/4 = 1/2

answer

a. 1/2