In example 5.1, the total sleep time per night among college students was approximately normally distributed with mean µ = 6.78 hours and standard deviation s = 1.24 hours. suppose you plan to take an srs of size n = 150 and compute the average total sleep time. what is the probability that your average will be below 6.9 hours? what is the probability that your average will be below 6.9 hours? ( fill in the blank below and round your answer to 4 decimal places.) ( fill in the blank below and round your answer to 4 decimal places.)

∠aed is formed inside a circle by two intersecting chords. if minor arc bd = 70 and minor arc ac = 180, what is the measure of ∠ aed? a) 45° b) 50° c) 55° d) 60°

Someone answer this asap rn for ! a discount store’s prices are 25% lower than department store prices. the function c(x) = 0.75x can be used to determine the cost c, in dollars, of an item, where x is the department store price, in dollars. if the item has not sold in one month, the discount store takes an additional 20% off the discounted price and an additional $5 off the total purchase. the function d(y) = 0.80y - 5 can be used to find d, the cost, in dollars, of an item that has not been sold for a month, where y is the discount store price, in dollars. create a function d(c(x)) that represents the final price of an item when a costumer buys an item that has been in the discount store for a month. d(c(x)) =

Which statement is true? n is a point of tangency on circle p. pt is a secant of circle p. is a secant of circle p. vu is a tangent of circle p.