Ajeweler cut a rhinestone in the shape of a rhombus. if one of the angles of the rhinestone measures 130 degrees, what is the measure of the consecutive angle, x? a. 180 degrees b. 130 degrees c. 50 degrees d. 90 degrees

439400

step-by-step explanation:

130^2 = 16900

16900*26 = 439400

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;