Which of the following equations is the result of cross multiplying the given proportion?

4/k+3=-2/k-5

-2 (k-5) = 4 (k+9)

(-2) (4) = (k-5) (k+9)

-2 (k+9) = 4 (k-5)

A patient receives 24 mg of medicine 3 times a day. If the patient takes all of the medicine for 7 days, how many milligrams of medicine will the patient take?

Suppose that dP/dt = 0.19P (t) represents a mathematical model for the growth of a certain cell culture, where P (t) is the size of the culture (measured in millions of cells) at time t > 0 (measured in hours).

The expression - 5+20 factored is

Solve for y: 12 = y^2 + y

How do i get 5x12-16+12

Find an equation using absolute value that has the given solutions, a. two solutions, 22 and 22 b. two solutions, - 51 and 5 c. two solutions, - 9 and 39 d. one solution, 18

An object is launched from a platform. It's height is meters is modeled by: h (x) = - 5 (x+1) (x-9) where x represents the time in schools after the launch. How many seconds after launch will the object hit the ground

Each of the p children at a park receive 3 balloons. If the children receive at least 150 balloons in all, find the minimum number of children at the park.

1. z^2 = 1 √{ } = √{ } z = ± { } The solutions are { } and { }

What is the rate for 171 And 3