What is the graph of the function f(x) = -2x^2 -3x +20?

Ricardo ran the 400 meter race 3 times his fastest time was 54.3 seconds his slowest time was 56.1 seconds if his average time was 55.0 seconds what was his time for the third race

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

You need to solve a system of equations. you decide to use the elimination method. which of these is not allowed? 3x - 2y = 7 3x + 4y = 17 equation 1 equation 2