Ordena las fases que comprende todo trabajo estadístico. 1. Recolección de datos. 2. Presentación de los datos. 3. Plan de recopilación. 4. Recuento de los datos. 5. Critica de los datos.

Solve the quadratic equation by completing the square. No credit will be given if solved by different away. \( x^{2}+14 x+33=0 \) \( x=\square \)

3. The diagram shows a hula hoop with diameter 96.52 cm . Nely spins the hoop for 4 complete rotations. Calculate the distance travelled by the hoop, in metres.

18. निम्न में कौन से घुल समताथ भिन्त है- \( \begin{array}{lll}\text { (a) } \frac{-13}{9} \cdot \frac{39}{-27} & \text { (b) } \frac{3}{-7} \cdot \frac{-18}{42} & \text { (c) } \frac{15}{14}, \frac{-225}{-210} \\ \text { (d) } \frac{-2}{3}=\frac{3}{2} & \text { (e) } \frac{3}{11} \cdot \frac{-3}{11} & \text { (f) } \frac{7}{-19}, \frac{-28}{76}\end{array} \)

Directions: Write the linear equation in Standard Form. \( y=-\frac{1}{3} x+\frac{23}{9} \) Incorrect Answer Given: \( -\frac{1}{3} x-y=-\frac{23}{9} \) Why is this incorrect? Answer fails to be in the form: \( A x+B y=C \) Answer fails to make sure \( A, B, C \) are not fractions (or decimals). Answer fails to make sure \( A \) is positive.

Perform the indicated operation and express me result as a simplifled complex number. \[ (-6+6 i)-(-9+8 i) \]