Tom simplified an expression in three steps, as shown below: Which is the first incorrect step and why?

A). Step 1: all the exponents are increased by 4

B). Step 2: the exponents of the same base are added during multiplication

C). Step 3: the exponents of the same base are subtracted during division

D). Step 3: all the exponents are added during division

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80

c

step-by-step explanation:

i think because what else can be a sample of every member

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: