Find the ratio of \( 7: 11 \times 110 \)

5(a) Express \( \frac{x^{2}-11}{(x+2)^{2}(3 x-1)} \) in partial fractions (b) Calculate the coefficient of \( x^{3} y^{4} \) in \( (2 x-3 y)^{7} \) 6(a) How many 2-digit numbers can be formed from the three numerals \( 2,5,6 \) ? (b) In how many ways can the President form a cabinet of 6 men and 3 women from (c) Show that \( r!^{n} C_{r}={ }^{n} P_{r} \)

The drama club is printing t-shirts for its members. The printing company charges a certain amount for each shirt plus a setup fee of \( \$ 40 \). There are 21 students in the drama club. If there are 21 students in the club, and the \( t \)-shirt order costs a total of \( \$ 187 \), how much does each \( t \)-shirt cost? \( \$ 5 \) \( \$ 7 \) \( \$ 11 \)

23.) \( |x+3|>11 \)

1. ENTERTAINMENT =rank, Gina, Judy, and Connie are plitting their dinner bill. After tip, the total po.08. How much does each owe if 1ey split the bill four ways? \[ 3+30.08 \] \[ \begin{array}{l}10.026 \\ 3\end{array} \]

26. Considere a função definida por \( f(x)=-x^{2}+4 x-2 \). a) Determine os zeros de \( f \), se houver. b) Calcule as coordenadas do vértice de seu gráfico. c) Esboce seu gráfico.