P The rate of growth E of a population of bacteria is proportional to the square root of t with a constant coefficient of 4, where P is the population size and tis the time in days (0 S t g 10). The initial size of the population is 800. Approximate the population after 7 days. Round the answer to the nearest integer. Given y" = 5 sin(x) + -2 x with y' (It) = 5 and y(? ) = -5. Find y(x). O y(x) = 5 sin(x) + 18x3 + 9x - 99 O y(x) = -5 sin(x)+x 3 7 2 - - 9x + 29n 24 O y(x) = -5 cos(x) + 9x 99 T 3 7 2 - 9x + 24 O y(x) = -5 sin(x) + 2x5 6 + 9x + 99 O y(x) = 5 cos(x) + 18x3 - 9x - 99 O y(x) = -5 cos(x) + x - 9x - 99