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DIA [1.3K]
3 years ago
11

1. What is the equation of the midline of the sinusoidal function?

Mathematics
2 answers:
Anna [14]3 years ago
7 0

5x + 5 = 100 \\ 5x = 100 - 5 \\ 5x = 95 \\ x =  \frac{95}{5}  \\ x = 19

\\  \\

topjm [15]3 years ago
6 0

5x + 5 = 100 \\ 5x = 100 - 5 \\ 5x = 95 \\ x =  \frac{95}{5}  \\ x = 19

\\  \\

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Please find the question attached below.

The equation that models the decrease in water (in gallons) of the fish tank over time (in hours) is y = - 20x + 180.

We know that a linear equation with one variable is one that contains just one variable.

Here we have to find the appropriate equation that models the given chart.

For option A. :

y = - 40x + 140

At x = 2, y = - 40*2 + 140 = - 80 + 140 = 60 =/ 140

So this option is incorrect.

For option B.:

y = - 40x + 180

At x = 2, y = - 40*2 + 180 = - 80 + 180 = 100 =/ 140

So this option is incorrect.

For option C.:

y = - 20x + 140

At x = 2, y = - 20*2 + 140 = - 40 + 140 = 100 =/ 140

So this option is incorrect.

For option D.:

y = - 20x + 180

At x = 2, y = - 20*2 + 180 = - 40 + 180 = 140

So this option is correct.

Therefore, the equation that models the decrease in water (in gallons) of the fish tank over time (in hours) is y = - 20x + 180. So, the last option is correct.

Learn more about linear equations here -

brainly.com/question/26950036

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