Watch help video Hannah and Brandon are both driving along the same highway in two different cars
to a stadium in a distant city. At noon, Hannah is 220 miles away from the stadium
and Brandon is 340 miles away from the stadium. Hannah is driving along the
highway at a speed of 30 miles per hour and Brandon is driving at speed of 50 miles
per hour. Let H represent Hannah's distance, in miles, away from the stadium t
hours after noon. Let B represent Brandon's distance, in miles, away from the
stadium t hours after noon. Graph each function and determine the number hours
after noon, t, when Hannah and Brandon are the same distance from the stadium.
y Click twice to plot each line. Click a line to delete it.
400
380
360
340
Stadium
320
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;

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %

the opening of this porabola is facing up

step-by-step explanation: