The sum of the roots of x^2+6x-55=0

The sum of the roots is

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form is equal to

in this problem we have

so

substitute in the formula

The roots are

Find the sum of the roots

answer: check all that apply, where the options?

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: