Find the domain of the following function. 1/ x^2-6x-7

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

Find the midpoint m of z1=(8+5i) and z2=(12+3i)

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 3 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30∘c on monday, but decreased at a constant rate in the next 3 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.