In 2009 the Central Mountain Valley School District had a high school graduation rate of 62%, which was the lowest graduation rate for any comparable school districts. The average graduation rate for comparable school districts was 75%. That year, the superintendent of the school district announced the launch of an ambitious new campaigh titled "Ninety by Thirty." The goal of the campaign was to increase the district's graduation to 90% by the year 2030.

The graph below shows the height of a projectile t seconds after it is launched. if acceleration due to gravity is -16 ft/s2, which equation models the height of the projectile correctly?

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

Carmen ayer en el mercado compro 3/4 kg de guayabas, 6/8 kg de peras, 1/2 kg de naranjas ¿cuantos kilogramos de fruta compro?