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san4es73 [151]
3 years ago
13

A top swimmer would be able to swim across a 25-meter pool in about

Mathematics
1 answer:
zhenek [66]3 years ago
3 0

Answer:

125 m/min

Step-by-step explanation:

Find the rate (speed) as follows:

  25 meters

--------------------- = (125/1) meters/min = 125 m/min

 (1/5) minute

This is equivalent to about 380 ft/min

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Given functions are

s(n)=2(1.1)^n+5_{}d(n)=4(1.08)^n+3

The total number of ducks and swans in the lake after n months can be determined by adding the functions s(n) and d(n).

t(n)=s(n)+d(n)

t(n)=(2(1.1)^n^{}+5)+(4(1.08)^n+3)

t(n)=2(1.1)^n+5+4(1.08)^n+3

t(n)=2(1.1)^n+4(1.08)^n+5+3

t(n)=2(1.1)^n+4(1.08)^n+8

Taking 2 as common, we get

t(n)=2\lbrack(1.1)^n+2(1.08)^n+4\rbrack

Hence The total number of ducks and swans in the lake after n months is

t(n)=2\lbrack(1.1)^n+2(1.08)^n+4\rbrack

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1 year ago
Number of different 5 digit combinations if successive digits msut be different
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