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emmasim [6.3K]
2 years ago
15

How many gallons of water will be in the fish tank after 1,2,3,4 minutes?

Mathematics
1 answer:
vaieri [72.5K]2 years ago
3 0

Answer:

you didnt add a picture or anything

Step-by-step explanation:

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The hydronium ion is H₃O⁺ and its concentration is equivalent to the H⁺ ion concentration. The H⁺ ion concentration is given by:

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[H⁺] = 6.31 x 10⁻⁹ mole/dm³

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3 years ago
What are the solutions of the equation?
yKpoI14uk [10]

Answer:

Option (b) is correct.

The solution of the quadratic equation x^2+4x=21  is -7 and 3

Step-by-step explanation:

Consider the given quadratic equation x^2+4x=21

This can be rewritten as, x^2+4x-21=0

We can solve the quadratic equation using middle term splitting method,

4x can be written as 7x-3x , we get,

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this gives x = 3 or x = -7

Thus, the solution of the quadratic equation x^2+4x=21  is -7 and 3

7 0
3 years ago
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