The first term of an A. p is_8 the ratio of 7th to the 9th term is 5.8 calculate the common difference of the progression

d = 3

Explanation:

The first term of the AP, a = -8

The ratio of 7th to the 9th term is 5.8.

We need to find the common difference of the progression.

The nth term of an AP is given by :

ATQ,

Put a = -8 in the above equation.

So, the common difference of the progression is 3.

the median of the data is 4.

step-by-step explanation:

the median means the middle number of a given number.

to decide which one is the median, arrange in ascending or descending order. but sometimes, you may find two(2) number in the middle, but it's easy, just add them together and divide by 2.

so,   determine the median of the data. 2, 3, 3, 4, 5, 7, 9

it is already arranged, count 3 times forward and 3 backward and the one left is your answer.

2,3,3,4,5,7,9

our answer is 4.

hope this !

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