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Pani-rosa [81]
3 years ago
6

Each year, the Department of Water Works measures the chloride concentration level in the water. The first year, they found the

chloride concentration changed by −1 and 3/5 mg/L . It is estimated that the chloride concentration will change −2 and 1/15 mg/L the next year.
What is the total change that will likely occur in 2 years?

Enter your answer as a simplified mixed number in the box.
Mathematics
1 answer:
Elan Coil [88]3 years ago
8 0
I think the answer is 3 1/4
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Answer:

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Step-by-step explanation:

Volume for triangular prism = 1/2 * b * l * h

we are given the length and the height but not the base.

since it is a right triangle we can use the Pythagorean theorem a^2 + b^2 = c^2

13.3^2 + b^2 = 20.5^2

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b = \sqrt{243.36} = 15.6

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Front: 15.6 x 13.3 = 207.48

Back: 15.6 x 13.3 = 207.48

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Right: 13.3 x 16 = 212.8

Bottom: 20.5 x 16 = 328

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3 years ago
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Yanka [14]

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6 0
4 years ago
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The roots of a quadratic equation are -7 and 1. Write an equation that could represent this function. Give your answer in standa
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Answer:

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Step-by-step explanation:

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