Did you mean +7 because there can’t be more than two equal signs
Answer:
Concept: Numerical Analysis
- We want a number X such that X × 0.80 = 560,000
- So we divide 560000 by 0.80 to get X
- X = 700,000
- Give brainlist
28 because 7×4=28 as the same as 4×7=28 so its greater then
Answer:
x(t) = 581.66 lb
Step-by-step explanation:
From the given information:
Consider the salt quantity in the tank at time t be x(t) lb.
∴ the rate of change of salt content in the tank is 
where:
the rate of inflow = salt conc. × flow rate = 3 lb/gallon × 7 gallons
=21 lb/s
rate of outflow = salt conc. in the tank × flow rate
= x/250 × 9
= 9x/250 lb/s
∴


This is a 1st order linear differentiation,
The integrating factor if 
∴


at t = (0) and x(0) = 100 lb
Hence;



∴
after time t = 1 minute i.e 60 s


x(t) = 581.66 lb
Answer:
which is the height??
Step-by-step explanation:
A= 156 if height is 12
A= 176 if 16 is height
A= 140 if 10 is height