Use variation parameters to find a general solution to the differential equation given that the function y1 and y2 are linearly independent solution
ty''-(t+1)y'+y=t^2; y1=e^t, y2=t+1

Suppose a gym membership has an initial enrollment fee of $75 and then a fee of $29 a month. which equation models the cost, c, of the gym membership for m months?

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

Someone which statements are true? check all that apply.