How many ways can a person toss a coin 11 times so that the number of tails is between 4 and 8 inclusive

Which of the following is the correct equation for this function? a. y= (x+4)(x+2) b. y=x^2+ 3x – 2 c. y+ 2 = – 2(x+3)^2 d. y+ 2 = 2(x+3)^2

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 +"

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)