Mathematics, 02.01.2022 14:30 bakoeboo

Which statement is true?

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Mathematics, 21.06.2019 17:40, skylerdemi1

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

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Mathematics, 21.06.2019 20:50, tra10money

An object is translated by (x + 4, y - 2). if one point in the image has the coordinates (5, -3), what would be the coordinates of its pre-image? (9, -5) (1, -5) (9, -1) (1, -1)

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Mathematics, 21.06.2019 21:20, pampam49

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.

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Mathematics, 21.06.2019 21:40, oprajapati

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?