HELP ASAP. WILL
MARK BRAINLIEST. Project: Explain the mathematics of roller coaster construction.
Imagine you are a roller coaster designer, and are asked to mathematically represent the curve of the first
drop of a new ride.
By looking at some of your favorite coasters, you determine that the optimal slope for the ascent, when
the car is being pulled up the slope by a chain, is 0.7. The slope of the first drop that will be the most
thrilling (without being dangerous) is -1.5.

Organic apples are on special for $1.50 per pound. does total cost vary inversely or directly with the number of pounds purchased? find the cost of 3.4 pounds of apples. a. inversely: $5.10 b. directly; $5.10 c. inversely: $2.27 d. directly; $2.27

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)) =

Olga bought a new skirt that cost $20. sales tax is 5%. how much did olga pay, including sales tax? 7.