Solve for x.
-3(X + 8) = x - 4

x = -5

Step-by-step explanation:

-3(x + 8) = x - 4

-3x - 24 = x - 4

+3x         +3x

-24 = 4x - 4

+4           +4

-20 = 4x

-20/4 = x

-5 = x

Solve for x

x = −3X − 20

Solve for X

X = −x/3 − 20/3

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;