The equation of the sum 42 and a number n is equal to 51

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

Create a question with this scenario you could ask that could be answered only by graphing or using logarithm. david estimated he had about 20 fish in his pond. a year later, there were about 1.5 times as many fish. the year after that, the number of fish increased by a factor of 1.5 again. the number of fish is modeled by f(x)=20(1.5)^x.

Find the zeros of each function. f(x) = 6x^2 - 7x - 20