A researcher makes observations of certain bacteria. Every 1/2 day the bacteria divide into 2. At the beginning of the observation there were two bacteria. If every 2 days there are 1/4 of the dead bacteria. Find the number of bacteria alive after 3 days

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A: ,

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A: Question-   If the population of a city is 155,000. If the population declines continuously by 5%…

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A: Initial population = 17000                  Rate = grows as 4% per year

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A: Solution of this question is

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Q: 9. In 8 years, a girl will be three times as old as she was 4 years ago, Find her present age.

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Q: A Bacteria grows at a rate of 25% each day. If there are 500 bacteria today , how many will there be…

A: Given,          A Bacteria grows at a rate of 25% each day. If there are 500 bacteria today.…

Q: Suppose a city with population 100,000 has been growing at a rate of 8​% per year. If this rate​…

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Q: Find a positive number for which the sum of its reciprocal and four times its square is the smallest…

A: Use 1 st derivatives ro find critical points and check its minimum or maximum using double…

Q: Find a positive number such that the sum of the number and its reciprocal is as small as possible

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Q: Suppose the doubling time of a population is 16 years. How long will it take for the population to…

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.