What is the relationship between the 6s in the number 660,472

An energy plant is looking into putting in a system to remove harmful pollutants from its emissions going into earth's atmosphere. the cost of removing the pollutants can be modeled using the function c = 25000p/100 -p what is the vertical asymptote?

In the 30-60-90 triangle below side s has a length of and side r has a length

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x