4) Una estufa secadora de tabaco construida con ladrillos colorados comunes tiene las siguientes dimensiones: Frente: 4 m Largo: 6 m Alto: 8 m . Durante el proceso de secado seguirá las siguientes variaciones de temperatura de bulbo seco: Amarillamiento: 48 hs a \( 35^{\circ} \mathrm{C} \), Fijación del color: 72 hs a \( 55^{\circ} \mathrm{C} \), Secados varios: 24 hs a \( 70^{\circ} \mathrm{C} \) Calcula la pérdida de calor por las paredes, teniendo en cuenta que la temperatura ambiente máxima es de \( 33^{\circ} \mathrm{C} \) y la mínima es de \( 10^{\circ} \mathrm{C} \), el espesor del ladrillo es de 15 cm y el coeficiente de conductibilidad del ladrillo es \( 0,0015 \mathrm{cal} / \mathrm{cm} . s .^{\circ} \mathrm{C} \).

Find the \( y \)-intercept of the line \( y=\frac{15}{2} x-\frac{13}{10} \)

24. Solve the quadratic equation \( x^{2}+x-6=0 \) by completing the square

The lengths of pregnancies in a small rural village are normally distributed with a mean of 266 days and a standard deviation of 13 days. In what range would you expect to find the middle \( 98 \% \) of most pregnancies? Between 240 If you were to draw samples of size 51 from this population, in what range would you expect to find the middle \( 98 \% \) of most averages for the lengths of pregnancies in the sample? Between Enter your answers as numbers. Your answers should be arcurate to 1 decimal places.

alculate the surface areas of the following cylinders with dimensions: The cylinder is closed and has a radius of 3 cm and a height of 4 cm .

Find the position and velocity of an object moving along a straight line with the given acceleration, initial velocity, and initial position. \( \mathrm{s}(\mathrm{t})=\square \) \( \mathrm{s}(\mathrm{t})=\square \)