Factor the expression 7x²+15n-18
1 answer:
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Using proportions, it is found that the life span of the person would be 14 years, 212 days and 22 hours shorter.
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- 2 packs a day for 35 years is 40 cigarettes a day for 12775 days, as
.
- Thus, a total of 511000 cigarettes, as
.
- Assuming each cigarette costs 15 minutes of life, the person loses 7665000 minutes of life, as
- One year has 525600 minutes, thus the person loses 14 years of life, as
- Looking at the decimal part, the person loses 212 days of life, as
- Again looking at the decimal part, 22 hours, as
- Thus, the person loses 14 years, 212 days and 22 hours of life.
A similar problem is given at brainly.com/question/23352001
Answer:
First, plug-in x and y as 3sinθ-2 and 3cosθ+4 into the equation, respectively:
Then, +2 and -2 cancel out and +4 and -4 cancel out as well, leaving you with:
We can factor out 3^2 = 9 from both equations:
We know from a trigonometric identity that , meaning we can reduce the equation to:
And therefore, we have shown that (x+2)^2 + (y-4)^2 = 9, if x=3sinθ-2 and y=3cosθ+4.
Hope this helped you.