A coin lands on heads 300 times. The relative frequency of heads is 0.6. How many times was the coin flipped?

Number of times the coin is flipped =500

Step-by-step explanation:

Relative frequency of head =

Let x= Number of times the coin is flipped, then

Hence, Number of times the coin is flipped =500

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step-by-step explanation:

it me < 3

answers

\3. yes the presentation (i.e. odd numbers being written as differences of two squares) is possible for all odd natural number however the presentation may not be unique. for example,  57=112−82=292−28257=112−82=292−282.

\4. 2 can't be written as a difference of two squares because 4-1=3 and 1-1=0 and the difference of squares grows to integers larger that 3.

can i get some in proving questions 1 and 2?