Answer:
The correct set of hypotheses is:
Step-by-step explanation:
This should be researched with a hypothesis test on the proportion of tourists visiting Rock City.
The claim that want to be tested is if the proportion has increased from the past proportion (π=0.75).
Then, the alternative hypothesis will state that the proportion is significantly higher than 0.75.
On the contrary, the alternative hypothesis will state that the proportion is not significantly different than 0.75.
This can be written as:
Answer:
The answer to the question is
it will take Dave 108.399 months or 9.03 years to reduce the balance to $0
Step-by-step explanation:
To solve the question, we note that
Balance cresdit = $20,000
APR = 20%
PMT = $400 per month we have
and
where r = 20 %÷12
P = $20000 and A = 400
Therefore we have
which gives 6/5=
= = 6 that is ln = ln (6) or n = = 108.399 months = 108.399/12 or 9.03 years
Answer:
(0,4)
Step-by-step explanation:
The line AD is a median, because D is the midpoint of BC.
The centroid is the point of intersection of three medians of triangle, we don't need to depict any another median, because we know that centroid divide each median in ratio 2:1 from the vertices of a triangle from which a median was depicted. That's obvious that the median AD was depicted from A. Let the point of centroid be M. AM:MD is 2:1. So we should find the coordinates of D
xD= (xa*1+xd*2)/ (2+1)= ((-4)*1+2*2)/3=0
yd= (ya*1+yd*2)/ (2+1)= (2*1+ 5*2)/3=12/3=4
(0,4)
A...the proportion of heads your friend observes is closer to 0.5