Law of sines or law of cosines
both 5. and 7.

Graph the system: f(x)= 3/x-2; f(x)= 1/2x + 2

Jabari is power washing houses for a summer job. for every job, he charges an initial fee plus $30 for each hour of work. his total fee for a 4 -hour job, for instance, is $170 . jabari's total fee,f, for a single job is a function of the number,t, of hours it takes him to complete the job. write the function's formula.

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels