Mark records his science scores in each monthly assessment over a period of 5 months. in the first assessment, he scores 76%. in the second assessment, he scores 73%. after that, his scores keep increasing by 2% in every assessment. assume that x represents the number of assessments since he starts recording and y represents the scores in each assessment.

which of the following describes the situation?
a.
a function only
b.
neither a function nor a relation
c.
a relation only
d.
both a relation and a function

What’s the answer ? use the picture to see the problem

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.

Helll ! 1,400 tons of wheat of two different varieties was delivered to the silo. when processing one variety, there was 2% of waste and 3% during the processing of the second variety of wheat. after the processing, the amount of remaining wheat was 1,364 tons. how many tons of each variety of wheat was delivered to the silo?