Solve the equation by extracting the square roots. List both the exact solution and its approximation rounded to two decimal places. x2 = 19

An arrow is shot vertically upward at a rate of 180ft/s. use the projectile formula h=−16t2+v0t to determine at what time(s), in seconds, the arrow is at a height of 420ft. round your answer(s) to the nearest tenth of a second.

If f(x) = 2x + 2 and g(x) = x? , what is (gºf)(2)?

Julia chooses a card at random from her set of cards. what is the probability that the card is labeled cat or hamster?