3. Un anuncio de 30 metros está colocado so- bre una base que se encuentra a 8 m sobre el nivel de los ojos de un niño. ¿Qué tan ale- jado debe estar el niño para que su ángulo de visión sea máximo?

\( \stackrel { 4 } { 4 } H _ { 2 } + \stackrel { \rightharpoonup } { 2 } O _ { 2 } \quad \square \quad \stackrel { 4 } { 4 } H _ { 2 } O \)

If \( f(x)=\ln \left(3 x^{2}-5 x-2\right) \) Find the slope of the tangent line to \( f(x) \) at \( x=2 \)

1 There are 7 teachers going to a 5 -day math conference. If registration is \( \$ 225 \) for each teacher, how much do the teachers pay?

For each equation shown below do the following: write down two points that must lie line, graph the line on the grid given, and state what type (horizontal or vertical) the l Label each line with its equation once you plot (draw) it. (a) \( x=8 \) Points: Type: (b) \( y=5 \) Points: Type:

\( 15 \mathrm{ml} \equiv \quad \mathrm{cm}^{3}(1) \) 1,5 0,15 15 0,015 Nono of tho given answers