Answer:
13
Step-by-step explanation:
Y = 25 - 3x
X = 4
Y = 25 - 3(4)
Y = 25 - 12
Y = 13
Answer:
3:8
Step-by-step explanation:
please mark me brainliest and thank me'
;)
D.
Explanation: a function can be described as something that has only one output for each input. So an X or input can only have ONE output.
Ex. (2,6) (2,8) would NOT be a function because there are two 2’s with two different outputs meaning it’s not a function.
Answer:
k = 0.0916
Step-by-step explanation:
T(t) = ![T_{s} + ( T_{o} - T_{s} )e^{-kt}](https://tex.z-dn.net/?f=T_%7Bs%7D%20%2B%20%28%20T_%7Bo%7D%20-%20T_%7Bs%7D%20%29e%5E%7B-kt%7D)
from question; t = 12 mins ,
= 50 C ,
= 80 C , T = 60 C
60 = 50 + (80 - 50) ![e^{-12k}](https://tex.z-dn.net/?f=e%5E%7B-12k%7D)
60-50 = 30 ![e^{-12k}](https://tex.z-dn.net/?f=e%5E%7B-12k%7D)
10/30 =
(Taking natural Log of both sides)
In(0.3333) = In ![e^{-12k}](https://tex.z-dn.net/?f=e%5E%7B-12k%7D)
-1.0986 = -12k
k = 0.0916