The Environmental Protection agency requires that the 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 individually trucks according to a Normal distribution with mean 1.45 grams per mile driven and standard deviation 0.40 grams per mile. (a) What is the 90th percentile for NOX exhaust, rounded to four decimal places?

(b) Find the interquartile range for the distribution of NOX levels in the exhaust of trucks rounded to four decimal places.

A benefit of major sporting events is that they generate a feeling of civil pleasure where it also help people from dissimilar countries to introduce other people. Another benefit of sports si that the nations which are hosting the event earns a large amount of wealth. , watching sport activities encourages people to participate and keep in fit. Similarly, well known sportsmans be like a idol for people. By watching sport events people not only see what is tolerance, practicing and talent could achieve but people also make well-known sportsmans as their idols. Moreover, sportmans are fulfilled by taking part of a sport event, whereas viewers also gets delighted by watching these events.

When it comes to drawbacks, the

b

step-by-step explanation:

given

- 2 (3x + 12y - 5 - 17x - 16y + 4 )

simplify the parenthesis by collecting like terms

= - 2 (- 14x - 4y - 1) ← distribute the parenthesis by - 2

= 28x + 8y + 2 → b