A rock is thrown into the air. It's height is given by the function h(t) = -16t^2+ 64t + 17 where his measured in feet and t in seconds.
What is the height of the rock after 1 second?
At what time is the rock the highest?
t=
What is the highest the rock goes?
When does the rock hit the ground?

-4

step-by-step explanation:

do 6-10=

if u need it to be negative.

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;