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Drupady [299]
3 years ago
12

A constant is a value in a formula that doesn't change. _______________

Mathematics
1 answer:
Sloan [31]3 years ago
4 0
A constant is a value in a formula that does not change its value.
 For example, in the formula:
 PV = nRT
 The constant is R.
 It means that regardless of the value of the other variables, R will always remain the same.
 R: universal constant of gases.
 Answer:
 A constant is a value in a formula that does not change its value.
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A 450-gallon tank full of water is draining at a rate of 20 gallons per minute.
Stels [109]

Answer:

The answer is below

Step-by-step explanation:

A function show the relationship between an independent variable and a dependent variable. The independent variable (input) does not depend on other variables while the dependent variable (output) depend on other variables.

In this question, amount of water in tank is dependent variable and the time taken is the independent variable. Let y represent amount of water in tank and x represent the time it has been draining. Therefore:

a) This can be represented by the equation:

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d) The graph was plotted using geogebra onling graphing calculator.

e) When the tank is empty, y = 0, hence

0 = 450 - 20x

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Step-by-step explanation:

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