A scientist is growing cell cultures and examining the effects of various substances on them as part of his research. The culture in one petri dish Increases according to the expression t2 + 3t + 4 for time t in
minutes. Another increases according to t2 +56 +4. He needs to feed all the cells equally so he needs to
know the expression for the total amount of cells in both dishes as the food is proportional to the total
number of cells. Enter the expression.

The total number is cells is

Find the domain of the function  [tex]f(x) = \sqrt{3x - 7} [/tex]in interval form, the domain of f is what? in advance.

The physical fitness of an athlete is often measured by how much oxygen the athlete takes in (which is recorded in milliliters per kilogram, ml/kg). the mean maximum oxygen uptake for elite athletes has been found to be 60 with a standard deviation of 7.2. assume that the distribution is approximately normal.

Jessica and martha each have a bag of cookies with unequal quantities. they have 30 cookies total between the two of them. each of them ate 6 cookies from their bag. the product of the number of cookies left in each bag is not more than 80. how many more cookies will jessica have martha? if x represents the number of cookies jessica started with, complete the statements below.the inequality that describes the relationship between the number of cookies each one of them has is x^2 - x +224 > = 0.jessica has at least cookies more than martha.