1. write it as it is
2. 70.04 since to round you go two decimal places and because the place after that is higher than 5 you round 3 up to 4.
3. DNE since you can’t divide any number by 0
They both have a y and x axis and they both represent things
Answer:
The 2 in the numerator should be -2
Step-by-step explanation:
-2 is the a, you cant get rid of it when doing the quadratic formula. I think
Let after n week both tanks have same quantity of water .
for first tank
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tank hold 540 gallon of water ,
leaking of water 4 gallon /week
so, in n week water leak from the tank =4× n = 4n
now, after n week quantity of water in the tank = 540 -4n
for second tank
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quantity of water in the tank =720 gallon
leaking of water at the rate = 7gallon/week
so, after n week water leak from the tank = 7× n =7n
after n week quantity of water rest in the tank = 720 -7n
now ,
according to question ,
water in first tank = water in second tank
540 -4n = 720 -7n
7n -4n = 720 -540
3n = 180
n = 60
hence , after 60 week both tank have same quantity of water.
