national geographic says that hatchling turtles on average swim about 25 miles in 30 hours. how long will it take a hatchling turtle to swim 15 miles at this speed?

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

The scatterplot below shows the number of hours that students read weekly and the number of hours that they spend on chores weekly. which statement about the scatterplot is true?

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.