Find range of length for third side
4cm, 17cm

13<x<21 (x is the side length) or (13,21)

Step-by-step explanation:

The value has to be greater than the positive difference between the two numbers, and less than the sum of the two numbers.

This makes the range : 17-4<side<17+4, which equals 13<x<21

i used to know how to do this in 7th but i forget easily

step-by-step explanation:

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950