Here is a sketch of y = x2 + bx + c The curve intersects
the x-axis at (2,0) and point P
Work out the x-coordinate of the turning point
the y-axis at (0, -14)
of the graph.
You must show your working and your final
line should begin with
The x-coordinate of the turning point is...

correct answers below:

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;

idk

step-by-step explanation: