Some people believe that biorhythms can help explain one's emotional, intellectual, and physical aptitude on any given day. For example, the curve below models the physical biorhythm, P, for a person born on day t = 0 . Approximately how long is one cycle of the physical biorhythm?

What is the exact volume of the cylinder 1.5 m 2.5 m

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

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)) =