If the endpoints of the diameter of a circle are (6, 3) and (2, 1), what is the standard form equation of the circle? a) (x + 4)2 + (y + 2)2 = 5 b) (x − 4)2 + (y − 2)2 = 5 c) (x + 4)2 + (y + 2)2 = 5 d) (x − 4)2 + (y − 2)2 = 5

Parks is wearing several rubber bracelets one third of the bracelets are tie dye 1/6 are blue and 1/3 of the remainder are camouflage if park swears to camouflage bracelets how many bracelets does he have on

In 2009, there were 1570 bears in a wildlife refuge. in 2010, the population had increased to approximately 1884 bears. if this trend continues and the bear population is increasing exponentially, how many bears will there be in 2018?

Scores on the cognitive scale of the bayley-scales of infant and toddler development range from 1 to 19, with a standard deviation of 3. calculate the margin of error in estimating the true mean cognitive scale score, with 99% confidence, if there are 12 infants and toddlers in a sample.