SOLUTION: The following formula models the number of prison inmates, P, in thousands who are in US prisons x years after 1980.
P=2x^2+20x+328
Find the first year in which the populatio
Algebra.Com
Question 672812: The following formula models the number of prison inmates, P, in thousands who are in US prisons x years after 1980.
P=2x^2+20x+328
Find the first year in which the population of US prisons was approximately 440,000 people.
Thank you for your help
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
is in thousands, so
Complete the square
The year is 1984
RELATED QUESTIONS
The following formula models the number of prison inmates, P, in thousands, who are in... (answered by Alan3354)
The following formula models the number of prison inmates, P, in thousands, who are in... (answered by richwmiller)
I am stuck on this question. The formula f(x)=2x^2+22x+320 models the number of... (answered by richard1234,Edwin McCravy)
Can you help me with this word problem?
The function f(x) = 2x2 +22x + 320 models the... (answered by checkley71)
The number of inmates N (measured in thousands) in federal and state prisons can be... (answered by TimothyLamb)
The number of inmates N (measured in thousands) in federal and state prisons can be... (answered by greenestamps)
The number of inmates N (measured in thousands) in federal and state prisons can be... (answered by greenestamps)
The number of inmates N (measured in thousands) in federal and state... (answered by jim_thompson5910)
The formula P=0.64x^2-0.045x+1 models the approximate population P, in thousands, for a... (answered by longjonsilver)