A lighting consultant wants to know how a new battery will perform in an LED strip. The consultant randomly samples 25 batteries from a recent shipment and tests how
many hours each battery keeps the strip lit at full capacity. The results are presented
in the dot plot.
Battery Life While Lighting an LED Strip
HHH
19 20
25
26
21 22 23 24
battery life (hours)
If the entire shipment contains 1,750 batteries, calculate the number of batteries the
consultant should expect to have for the listed subset of hours.
20 hours:

the forst and 3rd

step-by-step explanation:

this is false ^.^ lol

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: