If segment FD = 30 units and segment FE = 55 units, what is the value of a? Round the solution to the nearest hundredth. triangle DEF in which angle F is a right angle, angle D measures a degrees, and angle E measures b degrees

A. 22.62
B. 28.44
C. 41.41
D. 61.39

The function ƒ is defined by ƒ(x) = (x + 3)(x + 1). the graph of ƒ in the xy-plane is a parabola. which interval contains the x-coordinate of the vertex of the graph of ƒ?

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

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)) =