4. A rectangular back yard ice rink is to have an area of 1200m', and will be surrounded by boards.
a) What are the dimensions of the ice rink that can be enclosed for the least cost of boards? b) If one board is 2.0 m long, how many boards would you need to enclose the rink?

he will have 300 because he is really broke and 300 is in his imangine

step-by-step explanation: he ehe heh step by the thy

the answer is 48m^2!

step-by-step explanation:

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b