what is the area of the obtuse triangle given below? 77 sq. units, 36.25 sq. units 154 sq. units 38.5 sq. units

Vinny is interviewing for a job.he wants his take home pay to be at least $42,000.what is the least salary he can earn if he pays 25% income tax?

The power generated by an electrical circuit (in watts) as a function of its current c (in amperes) is modeled by p(c)= -15c(c-8) what current will produce the maximum power?

Is experimental probibilty the same as the observed frequency in math? i need the answer asap!