a , a , b and 40 are four numbers. a is the least number. 40 is the greatest number. The range of the four numbers is 14 The median of the four numbers is 30 Work out the value of a and the value of b .

a=26

b=34

Step-by-step explanation:

a=(40-14=)26

and because there is an even amount of numbers in the sequence, 30 would have to be halfway between a and b making b 34

i found two solutions,   n = 2 • ± √3 = ± 3.4641

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: