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illle by the function S(0 Se-at, where t is time in years. Find the sales after

ID: 2886176 • Letter: I

Question

illle by the function S(0 Se-at, where t is time in years. Find the sales after 9 years if a- 0.2 and So 60,000. (Round to the nearest whole number.) A) 9,918 B) 362,979 C) 5,443 D) 73,284 6) Use a graphing calculator to predict approximately how many books will be read in the eighth grade. Round to the nearest hundreds. Grade I Number of Books Read 15 57 A) 600 B) 900 C) 500 D) 1000 7) A lake is stocked with 500 fish of a new variety. The size of the lake, the availability of food, and the number of other fish restrict growth in the lake to a limiting value of 3,125. The population of fish in th lake after time t, in months, is given by the function 3,125 I +5.25e-0.37t

Explanation / Answer

6)

Use the STAT key in TI-83 and enter the given data, then switch to CALC menu, use the exponential regression feature of calculator to obtain the equation as

f(x) =1.44777176*(2.12598086)^x

Substitute x= 8 to obtain

f(8) =1.44777176*(2.12598086)^8

is about 600

Correct option is A