Have been working on this for the past 10 minutes . Can you guys help me ?

1. Proportional

Y is 5 times x

2. Not Proportional

Y is .5 times x

x and y are not proportional in either table.

Step-by-step explanation:

x and y are not proportional in the first table.  Notice that y = x/5 for x = 30, 25, 45 but not for x = 14.  The relationship between x and y must be consistent.

x and y are not proportional in the second table.  y = 2(4) = 8

and y = 3(5) = 15.  In order for x and y to be proportional y = kx where k is constant.  This is not happening in the second table.

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;

arc length = radius * x ( in radians)

6 * pi = 18 * x

divide by 18 on each side

6 pi / 18 = x

pi/3 = x

the angle is pi / 3 radians

or   60 degrees