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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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