Mathematics, 23.03.2021 23:40 auraziabagley
Ava's family drove to Disney Land for spring break. Her mom and dad shared the driving duties for a total
of 24 hours. Her mom drove 75 miles per hour, and her dad drove 60 miles per hour. If they drove a total of
1,710 miles, how many hours did each person drive for?
m
Answers: 3
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If there is no real number solution to the quadratic equation x^2+2x+c=0 what is a possible value of c? 1 -2 0 3
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Mathematics, 21.06.2019 17:30
Write an expression that has three terms and simplifies to 4x - 7. identify the coefficient(s) and constant(s) in your expression
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Mathematics, 21.06.2019 23:00
According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.
Answers: 1
Mathematics, 21.06.2019 23:00
Each of the following data sets has a mean of x = 10. (i) 8 9 10 11 12 (ii) 7 9 10 11 13 (iii) 7 8 10 12 13 (a) without doing any computations, order the data sets according to increasing value of standard deviations. (i), (iii), (ii) (ii), (i), (iii) (iii), (i), (ii) (iii), (ii), (i) (i), (ii), (iii) (ii), (iii), (i) (b) why do you expect the difference in standard deviations between data sets (i) and (ii) to be greater than the difference in standard deviations between data sets (ii) and (iii)? hint: consider how much the data in the respective sets differ from the mean. the data change between data sets (i) and (ii) increased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). the data change between data sets (ii) and (iii) increased the squared difference îł(x - x)2 by more than data sets (i) and (ii). the data change between data sets (i) and (ii) decreased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). none of the above
Answers: 2
Ava's family drove to Disney Land for spring break. Her mom and dad shared the driving duties for a...
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