Find the measure of \angle RST∠RST. ​ ​ ​The measure of \angle RST∠RST is ^{\circ} ∘ .

Step-by-step explanation:

Given

See attachment

Required

Find RST

To do this, we use:

--- angle on a straight line

Make RST the subject

Hence, the measure of RST is 144

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:

i hope this is what you were looking for.

see attached graph