John has 15 more baseball cards than michael. together they have a total 55 cards. how many cards does michael has

The weights of players in a basketball league are distributed normally. the distance (d) of each player's weight (w) from the mean of 86 kilograms was computed as follows: d = |w - 86| if d is greater than 7 for approximately 5% of the players, what is the approximate standard deviation of the players' weights? a. 1.75 kilograms b. 3.5 kilograms c. 4.3 kilograms d. 7 kilograms

Solve the equation by completing the square. x^2+2x=17

Find the missing dimension extra points