The temperature of a chemical solution is originally 21 celsius. a chemist heats the solution at a constant rate, and the temperature of the solution is 75 celsius after 12 minutes of heating.
the temperature, t, of the solution in celsius is a function of x, the heating time in minutes.
write the functions formula
t=

Aplot of land in the shape of a vertical ellipse has a pole at each focus. the foci are 8 feet from the center. if the plot of land is 34 feet across the vertical axis, then it is (a.24 b. 30 c. 32 d. 36) feet across the other axis. the eccentricity of the ellipse traced by the boundary of this plot, rounded to the nearest thousandth, is (a.0.543 b.0.515 c.0.471 d. 0.459)