Sample average of 12 micrograns per cubic meter if 196 reading were taken and the standard deviation of the sample measurements was 3.5 micrograms per cubic meters you are 99.7 confident that actual concentration on fine particulates at the school is?

so far i think you have the right thing going for you just remember soh cah toh

step-by-step explanation:

sine over hypotenuse

cosine   equals adjacent

tangent over hypotenuse

b

step-by-step explanation:

it have 5 sides and 5 identicle angle.the rest does not have the same property as b.

brainliest

the photograph is photographer and- in the process- ourselves.

step-by-step explanation:

c. 1,233 miles