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Find the balance at the end of 4 years if 1000 is deposited at the rate of

Acircle has a circumference of 28.36 units what is the diameter of the circle

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