Find the equation of the horizontal line at a height of -3.9. O the height must be an integer O y = -3.9 O y = -3.9x O x= -3.9

The height of the falling sheet of paper, in feet from the ground, is given by s(t)=-1.5t+9 after t seconds. ​ When will the sheet of paper reach the ground? ​ a. after 3 seconds b. after 15 seconds c. after 9 seconds d. after 7.5 seconds e. after 6 seconds

A -9% grade meets a +5% grade at station 2+123.56 of elevation 55.56 m. The lengths are unequal L1=100 m, L2=80 m. Calculate the elevation at every full station. Compute the stationing and elevation of the lowest point on the curve.

Since 2002 , admissions at movie theater have been declining. The number of people y(in billions) who go to the movie theaters each year can be estimated by the equation y=-0.075x+1.35, where c represents the number of the years since 2002  A• What is the x-intercept ? B• choose the statement below that best describes the significance of the x-intercept  a-The x-intercept means, that in 2002, more than 18 people will attend the movie at the theater. b-the x-intercept means, that in 2002, less than 18 people will attend the movie at the theater  c-the x-intercept means, that in 2002, 18 people will attend the movies at the theater  d- the x-intercept means , that 18 years after 2002, 0 people will attend the movies at the theater .

Data comprises of the number of hours studied (x) and the exam grade (y) obtained for first 6 year students registered. The equation of best fit is given by: y= 67.071 + 4.535x. What is the correct interpretation of the equation?

Only do number 3

O 22. The equation y = - 4.9x +9.8x +2 models the trajectory of a ball thrown in the air by a man, where y = the distance the ball is from the ground in meters and x = the elapsed time in seconds. What is the greatest distance the ball is from the ground? O 6.9 meters O 4.9 meters O 2.2 meters O 9.8 meters