Question

a water balloon is tossed in the air with an upward velocity of 25ft/s. the height h(t)in ft after t seconds is given by the function h(t)=-16^2+25t+3.
1.,After how many seconds will the balloon hit the ground? (hint: Use the quadratic formula)
2.,What will the height be at t = 1 second?
please help

Answer 1

Hi What do you need help with today :)

Answer 2

@trinajoy um this question please im having trouble find out the second question the first

Answer 3

btw what grade it this

Answer 4

why?

Answer 5

To find out how many seconds it would take until the balloon hits the ground, you would use the quadratic formula:

−b±b2−4ac−−−−−−−√2a

−162+25t+3=0−25±625+192−−−−−−−−√−32−25±817−−−√−32

x = 1.674 seconds (other solution is negative)


Same thing for t = 1 second, except the equation is equal to 1 instead of 0:

−162+25t+3=1−162+25t+2=0−25±625+128−−−−−−−−√−32−25±753−−−√−32

x = 1.638 (other solution is negative)
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Answer 6

that's the answer to the second question (8th g)

Answer 7

@london9321 you see the bottom one that is the answer to the second question
I.638 is the answer to the second question

Answer 8

thank you sooo much @trinajoy

Answer 9

np btw are you new to study island @london9321

Answer 10

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Answer 11

if you are new to open study here

Answer 12

\bbox[8pt, pink,border:5pt solid red ]{\color{black}{\LARGE\cal~\bigstar\heartsuit\dagger Welcome~to~OpenStudy!\bigstar\heartsuit\dagger{{\cal\color{#872af0}{\hspace-274.5pt{\bigstar\heartsuit\dagger Welcome~to~OpenStudy!\bigstar\heartsuit\dagger}}}}~~}}

Answer 13

yea im knew
??