Amy s doing a science experiment on how a certain bacterium reacts to an antibiotic. She has 3 dishes of identical bacterium
samples with 14 bacteria in each desh She gives an antibiotic to all of the bacteria in one dish. All of the treated bacteria died, and
the bacteria in the other two dishes survived.
Identify the sample size in the situation above.
On 3
OB. 14
oc. 42
OD. 28

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The number of hours per week that the television is turned on is determined for each family in a sample. the mean of the data is 37 hours and the median is 33.2 hours. twenty-four of the families in the sample turned on the television for 22 hours or less for the week. the 13th percentile of the data is 22 hours. approximately how many families are in the sample? round your answer to the nearest integer.

Mary beth used the mapping rule to find the coordinates of a point that had been rotated 90° counterclockwise around the origin. examine the steps to determine whether she made an error. m (3, –6) is rotated 90° counterclockwise. (x, y) → (–y, x) 1. switch the x- and y-coordinates: (6, –3) 2. multiply the new x-coordinate by –1: (6(–1), –3) 3. simplify: (–6, –3) .

45 was divided by a power of ten to get 4.5. what power of ten was it divided by? people 4.5