Work out the mean for the data set below:
7.7, 1.6, 5.3, 4.9, 2.1

4.32

Step-by-step explanation:

7.7 + 1.6 = 9.3

9.3 + 5.3 +2.1 = 16.7

16.7 + 4.9 = 21.6

21.6 ÷ 5 = 4.32

Hope this helps plz mark brainliest if correct :D

d. vertex

step-by-step explanation:

b: |12 – x| ≤ 0.25

step-by-step explanation:      

let x be the possible lengths in inches, of the ribbons jaime cut.

we have been given that jaime is cutting strips of ribbon for a project. he tries to cut each piece to be 12 inches long, but sometimes he cuts it too long or too short by as much as 0.25 inch.  

we can represent this information in an inequality as:

by the definition of absolute value function we will get,

upon combining our inequalities we will get,

therefore, the inequality   describes all the possible lengths (x), in inches, of the ribbons jaime cut.

step-by-step explanation: