Write a simplified polynomial expression in standard form to represent the area of the rectangle below. a picture of a rectangle is shown with one side labeled as 2 x minus 4 and another side labeled as x plus 5 a) 2x^2 + 6x − 20 b) 2x^2 − 4x − 20 c) 2x^2 + 6x + 20 d) 2x^2 + 10x + 20

250

step-by-step explanation:

answer is 144

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;

answer: 8d

step-by-step explanation:

45+5= 50+5=55+5=60