There are several alternatives for alleviating so2 pollution from smokestacks in operations using coal as a major fuel source. one is to employ a scrubber that cleans the gases after the coal is burned prior to release. in 50 samples of gases emitted from a stack equipped with a scrubber, the sample mean and sample standard deviation so2 emissions were 0.13 and 0.05 ppm btu, respectively. construct a 95% confidence interval for σ2.

b) well because you get well

168

step-by-step explanation:

first off, we know that he drove 3.5 hours at a rate of 48 mph.

knowing that, we want to see how many miles he drove all-together.

in this case, we can just multiply 48 by 3.5.

48 * 3.5 = 168

answer: (yeees, you need a poet.)

//blooming serenity//

beautiful in the morning

mysterious at night

wonderous nature souring

with all it's mystical might

the flower that blooms

to the fox that looms

nocturnal creatures

with various features

a blooming flower soon in sight

as a new little hatchling fears to take flight  

afraid to leave it's calming nest,

but dear little bird, mother knows best

as sure as there are stars in the sky,

life is not about who, where what, when or why-

it's the journey that follows

adventures we swallow

of   nature's deep wonders,

natural disasters and storm's thunders.

blooming serenity

life and nature, truly is heavenly.

-kerstien lehman

step-by-step explanation: