15 points Alex props up a ladder against a wall. The ladder makes an angle of 23° from the ground. If
the ladder is 10 feet long, what is the expression for finding the distance the foot of the
ladder is from the wall?

What is the correlation coefficient between the variables? round to three decimal places. enter your answer in the box

Which value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12

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.