1. A ball is thrown in the air with the equation y = -x +8x+5 representing the height of the ball in feet. a. How high is the ball at the moment of throwing?
b. How high will the ball be after 1 second?
c. How high will the ball be after 2 seconds?

d. When will the ball hit the ground?
e. What's the highest altitude of the ball?

Jonah runs 3/5 miles on sunday and 7/10 mile on monday. he uses the model to find that he can ran a total of 1 mile . what mistake does jonah make

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a,b and c integers and a> 1