Use the quadratic formula, x=−b±b2−4ac√2a, to solve the following equation. 5x2−9x−10=0 What are the solutions to the equation? Select all that apply.
x=−9+281√5
x=9+281√10
x=81−281√10
x=−9−281√5
x=9−281√10

arithmetic sequence

step-by-step explanation:

given that a sequence has terms as

19, 15, 11,

this is represented on a graph

the pattern indicates that the sequence is an arithmetic sequence with i term

a=19 and common difference d =-4

any general term

thus the sequence is reduced by 4 for each successive term starting from 1 and nth term is

24-5n.

first negative term would start after 5th term

5th term =24-25< 0

from 5th term onwards the sequence would be negative.

47

step-by-step explanation:

what i would say the best answer is a. 40.5