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The average annual number of cigarettes smoked by an adult in some country continues to decline. For the years 2000−2012, the equation y=−77.8x+2051 approximates this data. Here, x is the number of years after 2000, and y is the average annual number of cigarettes smoked. If this trend continues, find the year in which the average annual number of cigarettes smoked reaches zero. To do this, substitute 0 for y in the equation and solve for x.
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Part 1
In
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, the average annual number of cigarettes smoked will be zero.
(Round down to the nearest year.)
Find the value of the following expression for the given values.
n2−m2; n=−3, and m=-7
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(Round to the nearest whole number.)
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x=
(x+4)=
9x=
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Give an example of a series sigmaan such that Sigma an is not cnvergent but the sequence (an) converges to 0,
#340153 on Dec 2023