## cubanafabien1996 Group Title Algebra HELPPP:0 pleaseee one year ago one year ago

1. surdawi

ok

2. azf

question?

3. tweetybirdgurl

do yall go to connection academy

4. surdawi

not me lol

5. cubanafabien1996

5. If an object is dropped from a height of 400 feet, the function h(t) = -16t2 + 400 gives the height of the object after t seconds. When will the object hit the ground? (1point) a. 25 seconds b. 10 seconds c. 5 seconds d. 2.5 seconds 6. A ball is thrown into the air with an upward velocity of 24 ft/s. Its height (h) in feet after t seconds is given by the function h = –16t2 + 24t + 5. How long does it take the ball to reach its maximum height? What is the ball’s maximum height? Round to the nearest hundredth, if necessary. (1 point) a. 1.5 s; 5 ft. b. 0.75 s; 32 ft. c. 0.75 s; 11 ft. d. 0.75 s; 14 ft. 22. A rocket is launched from atop a 68-foot cliff with an initial velocity of 155 ft/s. The height of the rocket above the ground at time t is given by h = –16t2 + 155t + 68. When will the rocket hit the ground after it is launched? Round to the nearest tenth of a second. 23. What kind of function best models the data in the table? Use differences or ratios. x y 0 -2 1 -3 2 -4 3 -5 4 -6 24. What kind of function best models the data in the table? Use differences or ratios. x y 0 1.9 1 7.6 2 30.4 3 121.6 4 486.4 25. Write an equation to model the data in the table. x y 0 2 1 -1.7 2 -5.4 3 -9.1 4 -12.8

6. surdawi

lol post them one by one

7. cubanafabien1996

yes, i go to connections academy

8. surdawi

5. If an object is dropped from a height of 400 feet, the function h(t) = -16t2 + 400 gives the height of the object after t seconds. When will the object hit the ground? h(t) = -16t2 + 400 the height on the ground is 0 0 = -16t2 + 400 try solving for t

9. cubanafabien1996

I already tried and i'm too stuck.. these were the only ones i needed help one:/

10. surdawi

wanna give it a try? -16t2 + 400 = 0 subtract 400 from both sides

11. cubanafabien1996

okay i will...so -16t2 + 400 - 400 and then 0 - 400?

12. surdawi

-16t2 + 400 - 400 = 0 - 400 so what will that be?

13. cubanafabien1996

-256= -400?

14. tweetybirdgurl

haye you go to connection, and wat grade are you in?

15. surdawi

no -16t2 + 400 - 400 = 0 - 400 -16t2 = - 400 now divide everything by (-16)

16. cubanafabien1996

t^2 = 25

17. surdawi

yes one more step, do u know it?

18. cubanafabien1996

@tweetybirdgurl yes, i go to connections academy.. and im a junior, taking 10th grade stuff because i dont know a lot of english because im from cuba and i came 5 years ago so i'm behind:/

19. cubanafabien1996

would it be 25?

20. tweetybirdgurl

oh ok so are you smart! lol

21. surdawi

no t^2 = 25 u have to take the square root of both sides

22. cubanafabien1996

Oh yeah i forgot about the square root! soo it would be 5

23. surdawi

correct!

24. cubanafabien1996

thank youuuu!

25. cubanafabien1996

would you be able to help me on the other ones, too?

26. tweetybirdgurl

haye can you help me with algebra please.... @cubanafabien1996

27. cubanafabien1996

what do you need help on??

28. tweetybirdgurl

here, i will post it ok

29. surdawi

i want to go eat; maybe when i get back and you still need help

30. cubanafabien1996

Thank you @surdawi

31. tweetybirdgurl

For questions 1–2, which graph represents the solution to the given system? 1. y = –x + 2 y = 3x – 1 (1 point) https://www.connexus.com/content/media/372912-272011-123128-PM-296482760.png

32. cubanafabien1996

Can someone help me in questions 6, 22, 23,24,25?? pleaseee