Answer:
Option (C) is correct.
The solution of the quadratic equation 
is 
and 
Step-by-step explanation:
Consider the given quadratic equation
We can solve the quadratic equation using middle term splitting method,
11x can be written as 15x-4x , we get,
Taking terms common, we get,
Thus, 
Thus, we get 
or 
this gives 
or 
Thus, the solution of the quadratic equation is and
2 1/3 quarts per batch, and five batches, so you multiply 2 1/3 x 5.
2 1/3 = 7/3 and 5 x 7/3 = 35/3 which simplifies to 11 2/3, so D. is the answer.
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Answer: 4,000
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7 days till the tank contains 14 gallons (if the day when it contains 42 gallons counts as day 0)
Answer:
d = log 38/log31
d = 1.06
Step-by-step explanation:
31 ^ d = 38
Take log of both sides since the exponential equation have different base (always)
d log 31 = log 38
d = log 38 / log 31
d = 1.58 / 1.491
d = 1.06.
We can actually check to see if this is correct.
Substituting d = 1.06
31^ 1.06 = 38.092
(You see, that's approximately correct)
Keep learning, maths is fun!
