A test is conducted in 22 cities to see if giving away free transit system maps will increase the number of bus riders. In a regression analysis, the dependent variable Y is the increase in bus riders (in thousands of persons)from the start of the test until its conclusion. The independent variables are X1 = the number (in thousands)of free maps distributed and a binary variable X2 = 1 if the city has free downtown parking,0 otherwise. The estimated regression equation is img . In city 3,the observed Y value is 7.3 and X1 = 140 and X2 = 0.The residual for city 3 (in thousands) is:. A) 6.15.
B) 1.15.
C) 4.83.
D) 1.57.

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)) =

Multiply and simplify. (x - 4) (x^2 – 5x – 6) i will mark brainliest if your answer is right. show how you got the answer. if your answer is correct but does not show how you got the answer you will not be marked brainliest.

Cuántos triángulos forman un diamante