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Mathematics 10 Online
OpenStudy (danielbarriosr1):

Please help me someone

OpenStudy (danielbarriosr1):

A golf ball is chipped into the air from a small hill with an upward velocity of 50 ft/s. Its height h in feet after t seconds is given by the function h=-16t^2+50t+10. What is the maximum height in feet that the ball reaches? Round your answer to the nearest whole number.

OpenStudy (danielbarriosr1):

\[Equation: h=-16t^2+50t+10\]

OpenStudy (anonymous):

First find out derivative of function to get critical point

OpenStudy (danielbarriosr1):

???

OpenStudy (anonymous):

okay its is quadratic equation so maximum or minimum point would be at vertex correct ?

OpenStudy (danielbarriosr1):

Yes

OpenStudy (anonymous):

So can you try to find vertex for it ?

OpenStudy (danielbarriosr1):

with the quadratic equation?

OpenStudy (anonymous):

use (-b/2a) to fin out vertex

OpenStudy (anonymous):

Getting this ??

OpenStudy (danielbarriosr1):

yes

OpenStudy (anonymous):

So vertex would be ---- ?

OpenStudy (danielbarriosr1):

\[\frac{ -50 }{ 2*-16 }\]

OpenStudy (danielbarriosr1):

50/32

OpenStudy (danielbarriosr1):

?

OpenStudy (anonymous):

Perfect ......

OpenStudy (danielbarriosr1):

So now what?

OpenStudy (anonymous):

Now we need to find out value of given function at this point can you try for it ?

OpenStudy (danielbarriosr1):

How can I do that... I mean what's the equation

OpenStudy (anonymous):

We are having function as h=-16t^2+50t+10 just plug value of of t =( 50/32) into this equation and try to simplify it can you try ?

OpenStudy (danielbarriosr1):

I will

OpenStudy (anonymous):

So this is nothing but height of ball which is ------ ?

OpenStudy (danielbarriosr1):

2035/16

OpenStudy (danielbarriosr1):

?

OpenStudy (anonymous):

Please check it once

OpenStudy (anonymous):

it should be ( 785/16 )

OpenStudy (anonymous):

Byeeeeee :)

OpenStudy (danielbarriosr1):

\[h=-16(\frac{ 60 }{ 32 })^2+50(\frac{ 50 }{ 32 })+10\]

OpenStudy (danielbarriosr1):

are you sure @suyogsomavanshi

OpenStudy (danielbarriosr1):

OH now I see why... Thank you @suyogsomavanshi

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