Let a, b, and c be independent random variables, uniformly distributed over [0,10], [0,9], and [0,5] respectively. what is the probability that both roots of the equation ax2+bx+c=0 are real?

Acolony contains 1500 bacteria. the population increases at a rate of 115% each hour. if x represents the number of hours elapsed, which function represents the scenario? f(x) = 1500(1.15)" f(x) = 1500(115) f(x) = 1500(2.15) f(x) = 1500(215)