HELP QUICK OMG OMG 3. AB passes through point D and is perpendicular to EF at D. Suppose AB is dilated by a scale factor of 2 centered on point D, and AB is dilated by a scale factor of 17 centered on point D. Which is true about the dilated lines?

put a pic up i haven't done this since 5th grade, so im kinda rusty

1. sometimes

2. never true

3. sometimes

step-by-step explanation:

these are pretty self explanatory if you know what supp right and com angles are

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;