Determine a equação reduzida de uma circunferência cujo centro é na origem e o raio é igual a raiz quadrada de 7 .

Which compound inequality could be represented by the graph?

Which inequality is equivalent to -3x < -12? x < 4 , x < -4 , x > 4, x > -4

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (–4, 0) and (6, 0). the y-intercept of the first parabola is (0, –12). the y-intercept of the second parabola is (0, –24). what is the positive difference between the a values for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth