Suppose p is the predicate defined by p(x, y) = x is friends with y, where x and y are people. (no one is considered to be friends with themselves.) translate the formal expression vx=y=z(y + z a p(x, y) a p(x, z)) into english.

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

Data for the height of a model rocket launch in the air over time are shown in the table. darryl predicted that the height of the rocket at 8 seconds would be about 93 meters. did darryl make a good prediction? yes, the data are best modeled by a quadratic function. the value of the function at 8 seconds is about 93 meters. yes, the data are best modeled by a linear function. the first differences are constant, so about 93 meters at 8 seconds is reasonable. no, the data are exponential. a better prediction is 150 meters. no, the data are best modeled by a cubic function. a better prediction is 100 meters.