!!WILL REWARD WITH 94 POINTS!! NEED ANSWER ASAP!!
1 answer:
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Answer:
(2x+1) -(-x^2+3x)
Step-by-step explanation:
r(x) = –x² + 3x
s(x) = 2x + 1
find the difference of (s-r)(x)
(s- r)(x) = s(x) - r(x)
we are given with s(x) and r(x)
to find the difference we plug both functions
(s- r)(x) = s(x) - r(x)
distribute negative sign inside the parenthesis
(2x+1) -(-x^2+3x) is the way we find difference
Answer:
a)
b) 86.5 years
Step-by-step explanation:
All values are rounded to 2 decimal places
a) We can find line by using y =mx+b
Therefore the line of best fit is
b) We can do this by using the formula of the best fit line to estimate the life expectancy of someone born in 2005
Therefore the estimated life expectancy of someone born in 2005 is 86.5 years
PS. Please give brainliest answer this was a lot of working out