44. PETS From 1999 through 2009, the number of dogs D and the number of cats C (in hundreds) adopted from animal shelters in the United States are modeled by the
equations D = 2n + 3 and C = n +4, where n is the number of years since 1999.
a. Write a function that models the total number T of dogs and cats adopted in
hundreds for this time period.
b. If this trend continues, how many dogs and cats will be adopted in 2013?

Look at arnold's attempt to solve the equation for b: 3b = 12 b = 3 · 12 b = 36 describe the mistake that arnold made.

The focus of parabola is (-4, -5), and its directrix is y= -1. fill in the missing terms and signs in parabolas equation in standard form

Cor d? ? me ? max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.