The tenth through thirteenth terms of an arithmetic sequence are given by a 10 = 47, ajj = 53,912 = 59, and a 13 = 65. Which formula can be used to find an?
A. an = 6n - 13
B. an = 6n + 37
Can = 6n +41
D. Un = 6n - 47
E. an = 6n-7

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it

|-23|, |29|, |34|, |-38|, |-45|, |-47|, |-59|,   |67|, |-78|, |-110|, |-514|, |710|

step-by-step explanation:

absolute value gets rid of any negative