What are the domain and range of the function {(3, 1), (5, –1), (9, –1), (2, 7), (–4, 1)}?

a.
domain: {3, 5, 9, 2 }; range: {1, 7}

b.
domain: {3, 5, 9, 2, –4}; range: {1, –1, 7}

c.
domain: {1, –1, 7}; range: {3, 5, 9, 2, –4}

d.
domain: {1, 7}; range: {3, 5, 9, 2 }

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.

Deepak plotted these points on the number line. point a: –0.3 point b: – 3 4 point c: – 11 4 point d: –0.7 which point did he plot incorrectly?

Plz ( true - false) all triangles have interior angles whose measure sum to 90.