Which statement best explains the confounding variable in this study?
A study of traffic violations on a busy highway finds that
the number of tickets for speeding written by officers
tends to decrease on rainy days. A police sergeant
explains that driver behavior could be a confounding
variable.
O On sunny days, more tickets for speeding are
written than on rainy days.
O Officers are less likely to want to leave their police
cars to write tickets on rainy days.
O Drivers may drive more carefully on rainy days, so
the number of speeding tickets decreases.
O Drivers are more likely to speed on rainy days to get
to their destination faster.
Save and Exit
Next
Submit

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

Complete the steps, which describe how to find the area of the shaded portion of the circle. find the area of the sector by multiplying the area of the circle by the ratio of the to 360. subtract the area of the triangle from the area of the sector.

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)) =