Answer:
tooth A
Step-by-step explanation:
0.23 = 0.230
0.230 > 0.195
Answer:
Index
Step-by-step explanation:
The 3 is the index, the √ is the radical sign and the 13 is the radicand.
Answer:
No, 55 and 101 are not multiples of 2, 3 and 9
Step-by-step explanation:
You have the correct approximate value of k. The part after that is where things get a bit strange.
You don't plug in t = 5 again. We don't know the value of t yet. We're trying to solve for it.
We do know u(t) is 135 as we want the temperature to be 135 degrees. Plug this in and isolate t.
So
u(t) = 70+380e^(-0.1004183888t)
135 = 70+380e^(-0.1004183888t)
135-70 = 380e^(-0.1004183888t)
65 = 380e^(-0.1004183888t)
380e^(-0.1004183888t) = 65
e^(-0.1004183888t) = 65/380
e^(-0.1004183888t) = 13/76
-0.1004183888t = ln(13/76)
-0.1004183888t = -1.7657839828248
t = -1.7657839828248/(-0.1004183888)
t = 17.5842692152893
So it takes about 17.58 minutes for the item to cool to the desired temp
Answer:
55 degrees in Celsius
Step-by-step explanation:
here is a formula to help: (131°F - 32) x 5/9 (the / is not for division, it's a fraction) = 55°C
