\angle a\: and\: \angle b\: are\: complementary.\: \angle b\: and\: \angle c\: are\: supplementary.\: ∠ a a n d ∠ b a r e c o m p l e m e n t a r y . ∠ b a n d ∠ c a r e s u p p l e m e n t a r y .

\angle a\: =\: 52^\circ\: \: find\: \angle c

answer:

ur dumb

step-by-step explanation:

stop wanting free answers

17   x 256=4352

sorry if this is wrong, i'm new.

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;