InnerSloth continue to update their popular video game Among Us.3 Scraping their serverlogs, we have the sample data below. For the number of players, the sample statistics includea mean of about 7.7778 players and a standard deviation of about 1.3017 players. For thegame times, the sample statistics include a mean of about 407.5556 seconds and a standard deviation of about 68.4235 seconds. The correlation between the number of players and thegame time is about 0.9012. (a) Build a linear regression model for the sample data.
(b) Use the model to predict the length of a game that has nine players.
Players Time
6 353
6 312
7 315
8 420
8 464
8 404
8 423
9 482
10 495

If a and b are the measures of two first quadrant angles and sin a = 4/9 and sin b = 2/5 find sin(a+b).

The table shows population statistics for the ages of best actor and best supporting actor winners at an awards ceremony. the distributions of the ages are approximately bell-shaped. compare the z-scores for the actors in the following situation. best actor best supporting actor muequals42.0 muequals49.0 sigmaequals7.3 sigmaequals15 in a particular year, the best actor was 59 years old and the best supporting actor was 45 years old. determine the z-scores for each. best actor: z equals best supporting actor: z equals (round to two decimal places as needed.) interpret the z-scores. the best actor was (more than 2 standard deviations above more than 1 standard deviation above less than 1 standard deviation above less than 2 standard deviations below) the mean, which (is not, is) unusual. the best supporting actor was (less than 1 standard deviation below more than 1 standard deviation above more than 2 standard deviations below more than 1 standard deviation below) the mean, which (is is not) unusual.

Which statements are true about additional information for proving that the triangles are congruent check all that apply