d i believe so it might be d if not i’m sorry
Answer:
k = 1
Step-by-step explanation:
<u>Discriminant</u>
As we need to determine the value of k that will give <u>one solution</u>, set the <u>discriminant to zero</u>.
<u>Given equation</u>:
Therefore:
Substitute these values into the discriminant and solve for k:
I'll send u a pic of my answer (I solved it on my cookbook) if u make this brainliest (u get 3 points for free if u do
I really hope this helps. I’m sure the answer is c:)
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
==============
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.
