a toy rocket is fired into the air from a base that is 3 feet tall. the rocket's path can be modeled by the function, h(t) = −16t2+75t +3, where time (t) is represented in seconds and the height is h(t). at what time does the rocket hit the ground?

between 2 and 3 seconds

between 3 and 4 seconds

between 4 and 5 seconds

the rocket never hits the ground.

between 4 and 5 seconds is the correct answer

  the correct choice is marked

step-by-step explanation:

the first two graphs show multiple turning points. the last graphs matches the description in every detail.

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;