Answer:
k = - 6.6667
Step-by-step explanation:
this is quite very simple to begin. I would encourage you take other practice questions similar to help with understanding it.
let us begin.
Given that ;
dT/dt = k ( Tm - T) where Tm is the temp of the medium
dT/dt = 5 degrees Celsius per minute when T = 70
so we have that, 5 = k ( 25 - 70)
remember to convert 5 degree celsius per minute to seconds
we have that;
5*60(sec) = k ( 25 - 70)
k = 5*60 / ( 25 - 70)
k = - 6.6667
note K is negative because we consider it for cooling process (temp decreasing).
cheers i hope this helps!!!
7/10 because you add seven and three which equals ten, and seven of them are dimes.
Answer:
43,000
Step-by-step explanation:
Remember, the tipping point is 50%.
42,591, if the hundreds to one's place is 500 or more, the number 591, it increases the thousands value by 1
Since 591 is greater than 591, the new number will increase from 42,591 to 43,000
-Chetan K
4x^2-12y^2-6x^2+10y^2
-2x^2-2y^2
i just want points so don't trust me on this
Answer:
4 inches
Step-by-step explanation:
The radius is the line from the center of the circle to the edge. We can assume the black line on the orange is the radius.
We want to find the diameter. The diameter is twice the radius, or
d=2r
We know the radius is 2, so we can substitute that in for r
d=2*2
Multiply
d=4
So, the diameter is 4 inches
