Posted by Sabrina on Wednesday, April 15, 2009 at 10:38am.
perhaps I am missing something but
wouldn't the smallest percentage possible of people agreeing with both statements be 0% ?
and the largest percentage possible agreeing with both parts be 54% ?
The 54% is correct but it says the smallest percent is incorrect
try this:
n(A or B) = n(A) + n(B) - n(A and B)
= .87 + .54 - n(A and B)
= 1.41 - n(A and B)
since we can't go over 100%
the n(A and B) must be .41 or 41% ????
yes that is correct. thank you!
I need help in graphing this function in Ms Excel by plot in points in the chart in part b and label the axes?
with the time on the x-axis and population on the y-axisb) Fill in the following chart. Round to the nearest whole person when necessary.
Year (t) Population (P)
t = 0
(2010) 6,000 7,000 8,000 9,000
t = 1
(2011) 3,000 3,500 4,000 4,500
t = 2
(2012) 2,000 2,334 2,667 3,000
t = 3
(2013) 1,500 1,750 2,000 2,250
t = 6
(2016) 857 1,000 1,143 1,286
c) Use your equation from part a) to approximate how many years it would take for the population to reach 400. Round to two decimal places if necessary.
Answer: t = 14 years t = 16.5 years t = 19 years t = 21.5 years
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