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Mathematics 13 Online
OpenStudy (anonymous):

please help me solve this?

OpenStudy (anonymous):

http://gyazo.com/2cde7aace2544d279e2803da4fd2b3d3

OpenStudy (anonymous):

@surjithayer

OpenStudy (anonymous):

put h=151 and find t

OpenStudy (anonymous):

how do u find t??

OpenStudy (isaiah.feynman):

Its nothing but a quadratic.

OpenStudy (anonymous):

151=235 t-16 t^2 16 t^2-235 t+151=0 \[t=\frac{ 235\pm \sqrt{\left( -235 \right)^2-4*16*151} }{ 2*16 }\] solve it.

OpenStudy (anonymous):

i tried to solve it but i need it in seconds and i got a fraction

OpenStudy (isaiah.feynman):

Yes. Convert to decimal. Its normal.

OpenStudy (anonymous):

i got t=235+i sqrt 64889/32 ??

OpenStudy (anonymous):

@Isaiah.Feynman im confused

OpenStudy (isaiah.feynman):

Use a calculator.

OpenStudy (anonymous):

im confused on what im converting to a decimal

OpenStudy (anonymous):

\[t=\frac{ 235\pm213.450 }{ 32 }=\frac{ 448.450 }{ 32 },\frac{ 22.550 }{ 32 } ~\approx.\]

OpenStudy (anonymous):

so i just need to convert 21.450/32 into a decimal??

OpenStudy (anonymous):

it is 21.550 not 22.550

OpenStudy (anonymous):

|dw:1431389249957:dw|

OpenStudy (anonymous):

?? im confused on what the graph is for>> do you know the answer?

OpenStudy (anonymous):

i have given you two answers . convert both in decimals.

OpenStudy (anonymous):

448.450/32=? 21.550/32=?

OpenStudy (isaiah.feynman):

Use your calculator.

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