Between 10 P. M. and 7:20 A. M., the water level in a swimming pool decreased by 7/12 in . Assuming that the water level decreased at a constant rate, how much did the water level drop each hour? ​

When ∆rst is translated 4 units down, what are the apparent coordinates of t’? give 15 points

The data in the table represent the height of an object over time. which model best represents the data? height of an object time (seconds) height (feet) 05 1 50 2 70 3 48 quadratic, because the height of the object increases or decreases with a multiplicative rate of change quadratic, because the height increases and then decreases exponential, because the height of the object increases or decreases with a multiplicative rate of change exponential, because the height increases and then decreases

Determine the mean and variance of the random variable with the following probability mass function. f(x)=( 729divided by 91) (1 divided by 9) superscript x baseline comma x equals 1,2,3 round your answers to three decimal places (e.g. 98.765).