Hi , the answer is 3 2/7 because seven times 3 equals 21 and 21 plus 2 equals 23 , giving us the fraction 23/7.
Answer:
Factor and set each factor equal to zero.
u
= - 7
/2,1/3
Randomly assigned group. the art class isn't random and only consists of a select type of people--it is not a representative sample; maybe more left handed people enjoy art than do right handed people! therefore, even though the randomly assigned group is smaller, it is the better estimate.
