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anonymous
 5 years ago
PreCal So my formula is
17512=27(2t+1.2)^2113(2t+1.2)+86
For some reason no matter what I do I'm getting different answers and wrong answers. PLEASE help.
anonymous
 5 years ago
PreCal So my formula is 17512=27(2t+1.2)^2113(2t+1.2)+86 For some reason no matter what I do I'm getting different answers and wrong answers. PLEASE help.

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amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0have you tried doing it to a little lynyrd skynyrd?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0{{t == 12.299157316325548}, {t == 13.19174990891814}}

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I think t=13.19175, 12.29916? Not positive though

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0substitue a variable to clean things up... u = (2t+1.2)^2 17512= 27u^2 113u +86 make it equal to zero 0 = 27u^2 113u +86  17512

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.00 = 27u^2 113u +17426

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0anything we can factor out to begin with?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0if anything, itll setup like this.... but you might need to just use the quadratic formula on it or work thru completeing the square (u /27)(u /27)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0yeah, i miss typed a (+)... :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0The number of bacteria in a refrigerated food product is given by , where is the temperature of the food. When the food is removed from the refrigerator, the temperature is given by , where is the time in hours. Hence the formula I got which is correct. NOW i have to ... Find the time when the bacteria count reaches 17512 which is only 1 answer in the form of hours.

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0u = 27.9691 and u = 23.0431 which one do you wanna use?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0ack..... use googles calculator :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0LOL ok so I didn't think of the fact one was negative. Obviously I don't have negative hours.

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0then well use u = 35,090.5556 2t+1.2 = 35,090.5556 t = [35,090.5556 1.2] / 2 if im lucky lol

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.013.19174990891814 this is the answer. I have no idea how sambol and mmbuckaroos got it though. I distributed first, then foiled the first one and then factored. 0= 2916t^2+3273.2t16240.64 and couldn't solve it from there. So I tried substituting x for (2t+1.2) So.. 27x^2113x17426=0 and still nothing...
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