#the math thing

34 messages · Page 1 of 1 (latest)

green summit
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11c and 14.

marsh rapidsBOT
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wolfqz

restive dagger
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@green summit so just put P(x) = 4000000 and whatever value of x you get is the answer.

green summit
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okay

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let me try

restive dagger
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did it work?

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for the 14th one, if youre not allowed to use any prior knowledge of kinematics, then just take the max height to be h, move everything to the same side and solve the quadratic

green summit
green summit
restive dagger
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what

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dont put in 4000000 for x

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set 5x^2 + 400x -2550 = 4000000 and solve

green summit
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oh

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now what

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ok i did something

restive dagger
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move everything to the same side and quadratic oilpapaintense

green summit
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i divided by 5

restive dagger
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ok that makes ur life easier

green summit
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ye

restive dagger
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still need to quadratic

green summit
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k

green summit
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cuz the answer is different

restive dagger
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you dont need to times 5 it

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as u divided both sides by 5

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it caused the effect of dividing by 1, whcih doesnt matter, so dont multiply by 5

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and then its asking you what amt of money so its the positive one

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and i think u forgot the -2 in the denom in the end

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hmm wait this is very strange

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OH

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P(x) is the profit in thousands of dollars, im sorry, the equation is equal to 4000 only @green summit

green summit
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alr ill do it in the morning

restive dagger
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ok