(FLAINING CAUSE AND EFFECT The Brown ruling required that educational facities must tegrate with "all deliberate speed" However, it left the actual timetable of integration up to e states. What is a possible consequence of the decislon's vague wording?

20) Solve the inequality \( |x-4|<2 \mid 3 x+1 \) \( \begin{array}{ll}\text { (a) } x>-\frac{6}{5}, x>\frac{2}{7} & \text { (b) } x<-\frac{6}{5}, x<\frac{2}{7} \\ \text { (c) } x>-\frac{6}{5}, x<\frac{2}{7} & \text { (d) } x<-\frac{6}{5}, x>\frac{2}{7}\end{array} \)

9. The Shanghai Maglev Train is ane of the fastest trains in the world, traveling about 2,144 miles in 8 hours. a. How many miles does it travel in one hour?

\( x-\frac{1}{x}=1: \) :

(a) A ball throw upward from the roof of a building which is 750 feet high will be at a height of \( h \) feet after \( t \) seconds as described by the function. \[ h=f(t)=-16 t^{2}+50 t+750 \] (i) What is the height of a ball after 5 seconds? (ii) What is the velocity of the ball after 5 seconds (iii) What is the acceleration of the ball at \( t=0 \) ? At \( =5 \) ? (b) Find a, b, c and d so that \( \left.\qquad \left.\left[\begin{array}{rr}1 & -2 \\ 2 & -3\end{array}\right] \right\rvert\, \begin{array}{ll}a & b \\ c & d\end{array}\right]=\left[\begin{array}{ll}1 & 0 \\ 3 & 2\end{array}\right] \)

(a) A ball throw upward from the roof of a building which is 750 feet high will be at a height of \( h \) feet after \( t \) seconds as described by the function. \[ h=f(t)=-16 t^{2}+50 t+750 \] (i) What is the height of a ball after 5 seconds? (ii) What is the velocity of the ball after 5 seconds (iii) What is the acceleration of the ball at \( t=0 \) ? At \( =5 \) ? (b) Find a, b, c and d so that \( \left.\qquad \left.\left[\begin{array}{rr}1 & -2 \\ 2 & -3\end{array}\right] \right\rvert\, \begin{array}{ll}a & b \\ c & d\end{array}\right]=\left[\begin{array}{ll}1 & 0 \\ 3 & 2\end{array}\right] \)