A trapezoid is a polygon that has exactly one pair of parallel sides. Select one:
True
False

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.

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Which expression is equivalent to (4 +6i)^2? ? -20 + 48i 8 + 12i 16 - 36i 20 + 48i