Answer:
97 + 312 = 409
409 is not divisible by 90.
There must be a mistake in the question.
Answer:
Time,t that it will elapse before the concerntration of the dye in the tank reaches1% of its original value is 460.52 seconds
Step-by-step explanation:
Let Q(t) = amount of dye for all time,t.
Let Q'= rate in - rate out.
But Q/200 = concerntration of dye
Therefore rate out= Q/200 ×2.
Q'/Q = - 1/100
Dividing by Q gives
Ln/Q/ + c = -1/100t + c1
Integrating both sides with respect to t
Ln/Q/ = -1/100t + c2.
c1 and c1 are just another constants
Q= c3e^-t/100
Exponentiating both sides will cause the absolute values to get absorbed into the constants giving rise to a new constant c3
200= c3-0/100
c3= 200
2= 200e^-t/100
Ln1/100= - t/100
Ln0.01 = - t/ 100
Cross multiply
t= Ln0.01 × 100
t = 4.6052 ×100
t = 460.52seconds
Answer:
y= -16(t-3)²+151
maximum, 151
Step-by-step explanation:
For y intercept put x=0 in the equation
So the answer is either D or A because both of those y intercepts are (0,382)
hope it helps
Answer:
Wait time=6hrs25min-3hrs55 min
=<em><u>2 hrs 30min</u></em>
