Paulo ran a marathon in about 1.56 × 10^4 s. a) write paulo's time in standard notation. b) miguel ran a marathon in 4 h and 16 min. who ran the race in the shorter amount of time? show your work. (question 2) solve each given equation and show your work. tell whether each equation has one solution, an infinite number of solutions, or no solution. explain your answers. a) 2x+4(x-1)=2+4x , (b) 25-x=15-(3x+10) , (c) 4x=2x+2x+5(x-x). (i posted a picture of question 3).

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.

Using pert, adam munson was able to determine that the expected project completion time for the construction of a pleasure yacht is 21 months, and the project variance is 4. a) what is the probability that the project will be completed in 17 months? b) what is the probability that the project will be completed in 20 months? c) what is the probability that the project will be completed in 23 months? d) what is the probability that the project will be completed in 25 months? e) what is the due date that yields a 95% chance of completion?

Which graph represents the linear function below? y-4= (4/3)(x-2)