3. From your class, how many airplanes traveled over 9 feet on their first throw? 4. What is the sample proportion of airplanes that traveled over 9 feet on their first throw? 5. What do we use the value of the sample proportion to estimate? 6. The Pompute the estimated standard error for the sample proportion in this setting. 7. Compute the margin of error for a \( 95 \% \) confidence interval for the true proportion of paper airplanes that travel over 9 feet on their first flight. 8. Compute a \( 95 \% \) confidence interval for the true proportion of paper airplanes that travel over 9 feet on their first flight.

Using the intermediate value theorem, determine, if possible, whether the function \( f \) has at least one real zero between \( a \) and \( b \). \( f(x)=x^{4}-3 x^{2}-10 ; a=3, b=4 \) Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice. A. By the intermediate value theorem, the function does not have at least one real zero between a and \( b \) because \( f(a)=\square \) and \( f(b)=\square \). (Simplify B. By the intermediate value theorem, the function has at least one real zero between a and \( b \) because \( f(a)=\square \) and \( f(b)=\square \). (Simplify your answers.) C. It is impossible to use the intermediate value theorem in this case.

Relaciona las columnas, escribiendo en la columna de la derecha, dentro del paréntesi la letra que corresponde. \( \begin{array}{ll}\text { a. Tres años } & \text { ( ) } 120 \text { meses } \\ \text { b. Dos lustros } & \text { ( ) } 16 \text { meses } \\ \text { c. Un semestre y cinco meses } & \text { ( ) } 6 \text { semestres } \\ \text { t. Un año y dos bimestres } & \text { ( ) } 10 \text { décadas } \\ \text { Un siglo } & \text { ( ) } 11 \text { meses }\end{array} \)

\( y = A \overline { C } + A B \overline { C } \)

Ejercro \( 8-3\{4+8[8(-12-6)+5]+3\}-2 \)

Evaluate the following indefinite integral. \[ \int 18 x^{\frac{1}{2}} d x \]