It took 6 hours for the temp. to drop to 7.8
12n+8 is your answer
Hope this helps!
Answer:
82
Step-by-step explanation:
So first you would do PEMDAS ( plz excuse my dear aunt sally)
Parentheses are first so you would do 4+3 which is = to 7
then its multiplication 6*7*2
And your answer is 82
Hopefully you know that the parentheses indicate that you should multiply the numbers. It really doesn’t matter what order you do it in because the answer will be the same no matter what. I would just multiply them however is simplest for you. I first did (-3)(+1)=-3 because multiplying anything by +1 will always stay the same. Next multiply (-3)(-2)=6. This is because 2x3=6 and a negative times a negative is always a positive. Next (6)(-14)=-84 because multiplying a positive by a negative always gets you a negative number. The answer is -84
The answer I got is: Surface area=201.06192983. So Rounding to two decimal planes I get 201.06.
Surface area= 4(Pie)r^2
I hope this helps!