Explain why the square root of 72 is irrational

It is an irrational number if it is not a perfect square. Since 72 is not a perfect square, it is an irrational number. This means that the answer to "the square root of 72?" will have an infinite number of decimals. The decimals will not terminate and you cannot make it into an exact fraction.

Step-by-step explanation:

Step-by-step explanation:

If it is not a perfect square, it is an irrational number. It is an irrational number since 72 is not a perfect square. "This means there will be an infinite number of decimals in the answer to" the square root of 72? There will be no termination of the decimals and you can't make it into an exact fraction.

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!