Answer:
45
Step-by-step explanation:
Answer:
Step-by-step explanation:
Amount of brine = 100 gal
amount of salt = 80 lb
rate of water running = 4 gal / min
Let A be the amount of salt in lb in the tank at any time t.
(a) dA/dt = rate of salt in - rate of salt out
Rate of salt in = 0
rate of salt out = A x 4 / 100 = A / 25 lb/min
So, dA/dt = 0 - A/25 = - A/25 lb/min



When t = 0, A = 80 lb
So,

(b) Now, A = 40 lb
So,


take log on both the sides

t = 17.3 minutes
Answer with explanation:
The equation which we have to solve by Newton-Raphson Method is,
f(x)=log (3 x) +5 x²

Initial Guess =0.5
Formula to find Iteration by Newton-Raphson method




So, root of the equation =0.205 (Approx)
Approximate relative error

Approximate relative error in terms of Percentage
=0.41 × 100
= 41 %
Answer:
The slope of the red line is -1/2
Step-by-step explanation:
Parallel lines always have the same slope
Answer:
−128
Step-by-step explanation: