Add both together by combing like terms to get 8x^2-x-4
An option that best approximates the percent decrease in consumption of wood power in the United States from 2000 to 2010 is (B) 11%.
<h3>
What is the percentage?</h3>
- A percentage is a number or ratio expressed as a fraction of 100 in mathematics.
- The percent sign, "%," is commonly used, but the abbreviations "pct.", "pct," and sometimes "pc" is also used.
- A percentage is a number with no dimensions; it has no unit of measurement.
To find an option that best approximates the percent decrease in consumption of wood power in the United States from 2000 to 2010:
- Looking at the numerical value of wood energy source in 2000, it is 2.25, while it drops to 2.00 in 2010.
- So, the percentage decrease in the value is given by:
- (2.25 - 2.00)/2.25 × 100
- 0.25./2.25 × 100
- 100/9
- 11.11
- ≈11
Therefore, an option that best approximates the percent decrease in consumption of wood power in the United States from 2000 to 2010 is (B) 11%.
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Answer:
15.6
Step-by-step explanation:
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It is 66.66667% you can round it to 67%