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miskamm [114]
3 years ago
13

7x-9x what is the answer

Mathematics
2 answers:
Oksanka [162]3 years ago
7 0

Answer:

-2x

Step-by-step explanation:

The expression itself is -2x. We subtract the coefficients 7 and 9 to get -2.

Lesechka [4]3 years ago
6 0

Answer:

-2x

Step-by-step explanation:

7-9=-2 since they have the same variable they can be simplified

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The formula that can be used to determine the emission each year is:

Emission in the first year x(1 - rate of decrease)^number of years

Emission in the first year = 120,000

Emission in the second year = 120,000 x (1 - 0.034)^1 = 115,920

Emission in the third year = 120,000 x (1 - 0.034)^2 = 111,978.72

Emission in the fourth year = 120,000 x (1 - 0.034)^3 = 108,171.44

Emission in the fifth year = 120,000 x (1 - 0.034)^4 = 104,493.61

Emission in the sixth year = 120,000 x (1 - 0.034)^5 = 100,940.83

Sum of emissions from the first year to the sixth year = 661,505

This illustrates the concept of exponential decrease.

Learn more about exponential decrease on: brainly.com/question/24098168

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1 year ago
I WILL GIVE BRAINLIEST, PLS HELP-A farmer has 300 ft of fencing with which to enclose a rectangular pen next to a barn. The barn
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A triangle cannot have more than _________ right angle.​
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Ms. Hernandez has $150.00 to spend on parking and admissions to the zoo. The parking will cost $15.00 and admission tickets will
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2996

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