Picture help me please

3, 12, 27 and 300

Step-by-step explanation:

To find the first 3 terms, substitute n = 1, 2, 3 into the n th term formula

3(1)² = 3 × 1 = 3

3(2)² = 3 × 4 = 12

3(3)² = 3 × 9 = 27

The first 3 terms are 3, 12, 27

Substitute n = 10 into formula for 10 th term

3(10)² = 3 × 100 = 300

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;