During a one hour- episode of numb3rs, the entertainment portion lasted 15 minutes longer than 4 times the advertising portion. if a represents the time spent on advertising, write an equation to represent the situation.

Ahovercraft takes off from a platform. its height (in meters), xx seconds after takeoff, is modeled by: h(x)=-2x^2+20x+48h(x)=−2x 2 +20x+48 what is the maximum height that the hovercraft will reach?

E. which of the following is not a possible probability? a. 25/100 b. 1.25 c. 1 d. 0

Acentral angle measuring 160 degrees intercepts an arc in a circle whose radius is 4. what is the length of the arc the circle formed by this central angle? round the length of the arc to the nearest hundredth of a unit. a) 4.19 units b) 6.28 units c) 12.57 units d) 12.57 square units