Rama is stringing beads whose lengths are each 0.19 inches. how can rounding be used to estimate the length of a row of
9 beads?

1.since the beads are about 0.20 inches, the length of a row of 9 beads will be approximately 9 + 0.20 = 9.20 inches.

2.since the beads are about 0.10 inches, the length of a row of 9 beads will be approximately 9 +0.10 = 9.10 inches

3.since the beads are about 0.10 inches, the length of a row of 9 beads will be approximately 9 x 0.10 = 0.80 inches.

4.since the beads are about 0.20 inches, the length of a row of 9 beads will be approximately 9 x 0.20 = 1.80 inches.

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.

Aschool had an election where the candidates received votes in the ratio 1: 2: 3. if the winning candidate received 210 votes, how many total people voted in the election?

Angie has saved 3/8 of the amount she needs to buy a bike. clive has saved 7/10 of the amount he needs to buy a skateboard. what is the difference between clive's and angie's fraction of savings?