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3 years ago

A spherical basketball has a diameter of 18 cm.

Mathematics

2 answers:

lesya [120]3 years ago

3 0

Use the formula 4/3 x pi x r^3 with R being 9
You get 3053.6

forsale [732]3 years ago

3 0

V=(4πr^3)/3 and we are told that d=18cm, so r=9cm thus

V=(4π9^3)/3

V=972π cm^3

V≈3053.63 cm^3 (to nearest hundredth of a cubic centimeter)

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A. Every month Population will increase by a factor of 0.84%.

B. Every 3 months Population will increase by a factor of 2.5%.

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Here, we have number of employees in a company has been growing exponentially by 10% each year. So , If we have population as x in year 2019 , an increase of 10% in population in 2020 as $x + \frac{x}{100}\times10$ which is equivalent to $\frac{11x}{10}$ .

A.

For each month: We have 12 months in a year and so, distributing 10% in 12 months would be like $\frac{10}{12} = 0.84$ . ∴ Every month Population will increase by a factor of 0.84%.

B.

In every 3 months: We have , 12 months in a year , in order to check for every 3 months $\frac{12}{3} = 4$ and Now, Population increase in every 3 months is $\frac{10}{4} = 2.5$ . ∴ Every 3 months Population will increase by a factor of 2.5%.

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In every 20 months: We have , 12 months in a year in which increase in population is 10% . Left number of moths for which we have to calculate factor of increase in population is 20-12 = 8. For 1 month , there is 0.84% increase in population ∴ For 8 months , 8 × 0.84 = 6.72 %.

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