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OpenStudy (anonymous):

PLEASE HELP! I can't solve this problem... I keep getting the wrong answer find T 0 = 145Tsin20-16T^2+5

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OpenStudy (anonymous):

it's just a quadratic in T... use the quadratic formula to solve the equation.

OpenStudy (anonymous):

write in standard form: aT^2 + bT + c = 0 where a = -16 b = 145sin20 c = 5

OpenStudy (anonymous):

I did use the quadratic formula but I keep getting a wrong answer...that's why I sort of need a more descriptive answer...

OpenStudy (anonymous):

with those values for a, b, c? first calculate what b=...

OpenStudy (anonymous):

0= -16T^2+49.592920T+5 O.O

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OpenStudy (anonymous):

i got 3.18 or -0.98

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