Do these 5 problems for your project and SHOW ALL your work. You can either factor or do the quadratic formula. 1. 3x^2 + 7x – 6 = 0 2. -x^2 – 2x + 8 = 0 3. -3x^2 – 2x – 5 = 0 4. x^2 – 1 = 0 5. x^2 + 4x – 7 = 0 (Last one you have to use quadratic formula) On each question tell what way you solved it and why.

Ahigh-altitude spherical weather balloon expands as it rises, due to the drop in atmospheric pressure. suppose that the radius r increases at the rate of 0.02 inches per second, and that r = 36 inches at time t = 0. determine the equation that models the volume v of the balloon at time t, and find the volume when t = 360 seconds. v(t) = 4π(0.02t)2; 651.44 in3 v(t) = 4π(36 + 0.02t)2; 1,694,397.14 in3 v(t) = four pi times the product of zero point zero two and t to the third power divided by three.; 4,690.37 in3 v(t) = four pi times the quantity of thirty six plus zero point zero two t to the third power divided by three.; 337,706.83 in3