1) Completa simplificando cuando sea posible. a) 12 y4+3 y 4=
b) −6 y 4−6 y3=
c) 5 y−9 y =
d) 3y2−3 y+3 y 2=
e) 2 y5+3 y 4=

What is the equation of a parabola y(x) that has a vertex at point (− 1/3 , 0.3) and passes through point (− 2/15 , − 1/2 ).

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

What is the value of x in the equation 2(x-4) = 4(2x + 1)?