Apply the Pythagorean Theorem to the 30º-60º-90º triangle, AD2 + BD2 = AB2. Which choice shows how to find BD expressed correctly in terms of s? • A.
s2 + BD2 = (2s)2; BD = s√3
• B.
s2 + BD2 = 2s2; BD = s
• C.
s2 + s2 = BD2; BD = s√2
• D.
(2s)2 + BD2 = s2; BD = s√3

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

Someone answer asap 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)) =

Select the correct answer and solve for y