A scientist is working with a radioactive element Radon. The of atoms every minute is represented by the function: R(x)= 500(0.5)x^, where x is the number if minutes and R(x) id the number of atoms remaining. Interpret the y-interceot in context of the problem

Use set buikder notation to represent the following set: {, -2, -1, 0}

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.

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?