Watch the video and then solve the problem given below. Click here to watch the video. If you toss two coins, what is the expected number of tails?

(28. \( \frac{1}{x(x+2)}-\frac{1}{(x+1)^{2}}=\frac{1}{12} \)

"tangoli? perimetro fosse stata 14 cm , quanti rettangoli diversi avresti petuto disegnare! vel disegno è riportata la pionta del corridoio di una scuola sul quelo si affoctiono 4 aule.

La progresión \( 6,3,0,-3,-6,-9 \) podemos clasificarla como: a. Aritmética creciente porque \( 6+(-3)=3 \) b. Geométrica decreciente porque su razón es 2 c. Geométrica creciente porque \( 3+(-3)=0 \) d. Aritmética decreciente porque su razón es -3

14. Magazine Kiosk. The rent on a magazine kiosk is \( \$ 225 \) per month, and the kiosk is open 6 days per week. Suppose that the selling price of each magazine is \( \$ 2.50 \), and the wholesale cost of a magazine when purchased by the retailer is \( \$ 1.00 \). (a) If the kiosk owner needs to make a profit of \( \$ 1,200 \) per month, how many magazines must he sell every day? (b) What profit would the owner make if he sells 900 magazines per month?

prove \( K_{i j}^{\prime} A_{j}^{\prime}=B_{i}^{\prime}=a_{i k} B_{k} \) Where aik \( =\frac{\partial x_{i}^{\prime}}{\partial x_{k}} \)