The speed s in miles per hour that a car is traveling when it goes into a skid can be estimated by the formula S = 5.5D(F+f), where F is the coefficient of
friction, f is the superelevation and D is the length of the skid marks in feet. After an
accident, a driver claims to have been traveling the speed limit of 55 mph. The
coefficient of friction under the accident conditions was 0.75 and the superelevation
was 0.05. How long should the skid marks actually measure if the driver was in fact
going 55 mph?
85ft
125ft
150ft
101Ft

Simplify this expression.2(10) + 2(x – 4) a. 2x + 16 b. x + 12 c. 2x + 12 d. x + 16

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.

Time (minutes) amount of water (gallons) practice 1. jin fills up a 510-gallon pool in the backyard for her children. she fills it with the garden hose at a rate of 17 gallons per minute. after it is filled, she lets it sit for 30 minutes in order to let the water temperature rise. the children then get in and have fun for an hour. the pool loses about 5 gallon of water each minute due to their splashing and playing. at the end of the hour, they tear the pool while getting out, which causes a leak the pool then begins to lose water at a rate of 2 gallons per minute. a. complete the table to show the amount of water in the pool after each minute. b. create a graph to model the problem situation. include when the pool will be empty. c. write a piecewise function that models this problem situation. explain your reasoning for each piece of the function. d. identify the x- and y-intercept. explain what they mean in terms of the problem situation, atamantha a cul 80 100 120 150 200 ning, inc