A toy army man with a parachute is dropped and follows the path f(x)=−12(x−1)2+8. At the same time someone throws a paper airplane that flies on a path modeled by the equation g(x)=−x+9. a. After how many seconds will the army man and the paper airplane first collide? b. What height are the objects at when they collide?

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angles. measure need asap

The weights of players in a basketball league are distributed normally. the distance (d) of each player's weight (w) from the mean of 86 kilograms was computed as follows: d = |w - 86| if d is greater than 7 for approximately 5% of the players, what is the approximate standard deviation of the players' weights? a. 1.75 kilograms b. 3.5 kilograms c. 4.3 kilograms d. 7 kilograms

Kathy spent 5/8 of her money on books and another 1/6 of her money on stationeries.what fraction of kathy’s money was left?