Mathematics, 03.07.2019 18:00 aliviadushane
The first few steps in solving the quadratic equation 9x2 + 49x = 22 β 5x by completing the square are shown. 9x2 + 49x = 22 β 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? a: 9(x2 + 6x + 3) = 25 b: 9(x2 + 6x + 3) = 49 c: 9(x2 + 6x + 9) = 31 d: 9(x2 + 6x + 9) = 103
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Someone answer this asap rn for ! a discount storeβs 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)) =
Answers: 2
The first few steps in solving the quadratic equation 9x2 + 49x = 22 β 5x by completing the square a...
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