Quiz
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aq'p'r' is an image created by a dilation centered at the origin with a scale factor k = . the vertices of aq'p'r' are q'(-2, 1),
p" (1,2), and r'(-1, 3). what are the coordinates of the vertices of the preimage, aqpr?
a. q(-8, 4), p(4,8), r(-4, 12)
b. 0(-1, -2), p(-2, 1), r(-3,-1)
c
1 1 1 1 1 3
0672), pla 2), r(4.4)
d. q(2, 1), p(-1, 2), r(1, 3)
select the best answer from the choices provided

23

step-by-step explanation:

abde or 1,2,4, 5 is the answer

step-by-step explanation:

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;