The Environmental Protection Agency (EPA) requires that exhaust of each model of motor vehicle be tested for the level of several pollutants. The level of oxides of nitrogen (NOX) in the exhaust of one light truck model was found to vary among individual trucks according to an approximately Normal distribution with mean μ=1.45 grams per mile driven and standard deviation σ=0.40 grams per mile. Which of the following best estimates the proportion of light trucks of this model with NOX levels greater than 2 grams per mile? a. 0.0846

b. 0.0228

c. 0.9772

d. 0.9154

e. 0.4256

answer: no

step-by-step explanation:

you are only given the cost not the amount of pounds.

4444444444444 i think

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: