8. The area of a rectangular carpet is (10x2 + 3x - 27) square yards. The length of the carpet is (5x + 9) yards. Which of the following represents the width?
F. (2x + 3) yards
G. (2x - 3) yards
H. (5x - 3) yards
J. (5x + 3) yards

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you can't solve x because it is 2 linear equation and you only have one equation

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;