The pollution level in 1980 was 7.13 to the nearest hundredth ⇒ answer c
Step-by-step explanation:
The function
, where
- p(t) is the population level at any time t
- t is the number of years after 1970
We need to find the pollution level in 1980
∵ ![p(t)=3(e^{0.0866t})](https://tex.z-dn.net/?f=p%28t%29%3D3%28e%5E%7B0.0866t%7D%29)
∵ t is the number of years after 1970
∴ t = 1980 - 1970 = 10 years
- Substitute the value of t in the equation above
∴ ![p(t)=3(e^{0.0866*10})](https://tex.z-dn.net/?f=p%28t%29%3D3%28e%5E%7B0.0866%2A10%7D%29)
∴ ![p(t)=3(e^{0.866})](https://tex.z-dn.net/?f=p%28t%29%3D3%28e%5E%7B0.866%7D%29)
∴ p(t) = 7.13214 ≅ 7.13 to the nearest hundredth
The pollution level in 1980 was 7.13 to the nearest hundredth
Learn more:
You can learn more about the functions in brainly.com/question/8520610
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Let x= number rows
Then x + 5 = number of seats per row
x(x+5) = 126
X^2 + 5x = 126
x^2 + 5x -126 = 0; now factor or use quadratic:
(x+14)(x-9) = 0; so the answers are either -14, or 9, and since -14 is not possible in this case because you can't have a negative number of rows, the answer is 9 rows.
Check work: number of rows = 9, number of seats per row = 9+ 5= 14, and 9 x 14 = 126
Answer: 37
Step-by-step explanation:
I guessed on the quiz and got it right
The correct answer is 2 .....................