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zhannawk [14.2K]
3 years ago
9

A scientist finds the temperature of a sample at the beginning of an experiment is t degrees celcius. After 1 hour, the temperat

ure is t^2 degrees celcius. If the temperature after 1 hour is 81 degrees celcius, what are two possible original temperatures? What is the difference between the possible original temperatures?
Mathematics
2 answers:
ale4655 [162]3 years ago
6 0
So the two possible original temperatures would be either -9 or 9.
KATRIN_1 [288]3 years ago
3 0
The possible temperatures are 9 degrees or -9 degrees as t^2 means t squared so the square root of 81 is t, however -9 x -9 and 9x9 is 81 so they're both possible answers.

as for the second part I'm not sure what they specifically want. sorry
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Answer:

Perimeter of rectangle before folded = 56 in

Total area after folding = 156 sq in

Step-by-step explanation:

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