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4.4.4 quiz: normal curves
question 4 of 10
2 points
sat scores are normally distributed, with a mean of 500 points and a
standard deviation of 100 points. suppose you take the sat. several weeks
later, you receive your results, which show that you reached the 90th
percentile for the math portion.
recalling that sat scores are always expressed as multiples of 10, how many
points did you get on the test?
o a. 600
ob. 130

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)) =

Write the expression 7x^3-28xy^2 as the product of 3 factors

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212