3. Consider the following statement. 6. "Composition of functions is commutative." Is this statement always correct? If so, provide an example. If not, provide a counterexample. 4. Consider f(x) = x + 7 and g(x) = x2 - 1. Part A: Find (fºg)(x). Part B: Find (gºf)(x). 5. Consider f(x) = 4x, g(x) = Vx2 - 1. and h(x) = V16x -1. Part A: Ish(x) equivalent to (fºg)(x) ? Justify your answer. Part B: Ish(x) equivalent to g composed with f of x Justify your answer​

In triangle abc segment de is parallel to the side ac . (the endpoints of segment de lie on the sides ab and bc respectively). find de, if ac=20cm, ab=17cm, and bd=11.9cm;

What signals you that factoring by grouping is the best method to use when factoring a problem?

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)) =