✓ 8 Find an equation of the hyperbola having foci at (5,-5) and (5,9) and vertices at (5,0) and (5, 4).

11. a particular type of cell doubles in number every hour. which function can be used to find the number of cells present at the end of h hours if there are initially 4 of these cells? a. n = 4 ()" b. n = 4(2)" c. n = 4 + (2)" din = 4 +"

Three times the sum of a number and seven is negative thirty-six. what is the number?

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14