What are the domain and range of h(x) = 3|x|? A. domain: all real numbers; range: y ≤ 0
B. domain: x ≥ 0; range: all real numbers
C. domain: x ≤ 0; range: all real numbers
D. domain: all real numbers; range: y ≥ 0

step-by-step explanation:

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.

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify