Its easy All u got to do is use times then do sub then put it in the boxes That's how u will find you "plus do your best try and try"
Newton's law of cooling is
k (t₁ - t₂) = -ln (T₁ - T∞ / T₂ - T<span>∞)
Use the two data points in the given to find k.
t = 0, T = 154
t = 10, T = 133
Solution:
k(0 - 10) = - ln (154 - 71/ 133 - 71)
-10k = -0.291716
k = 0.02917 or 0.0292
So now find t when T = 100
0.2917 * ( 0 - t) = -ln (154 - 71 / 100 -71)
- 0.02917t = - 1.0515
t = 36. 05 minutes
to the nearest minute t = 36</span>
Answer:
8
Step-by-step explanation:
we have to give the smallest number that will divide by 12
if we give 1 it will be 79 and this number won't divide to 12
so the second smallest number would be 2 and the answer will be 78 and this doesn't divide by 12 also, when we try all the numbers we can see at last that the smallest number we can give is 8 which will be 72 and this number can also be divided by 12
Answer:
3+(-4)= -1
Step-by-step explanation:
Originally on 3 and goes to -4, and for addition add (-4) to positive 3 and you'll get -1