Answer:
A recent report estimated that 25% of all college students in the United States have a sexually transmitted disease (STD). The director of the campus health center believes that the proportion of students with STDs is higher at their campus.
According to the American Heart Association guidelines, the daily maximum amount of sugar a teenager should have is 4 teaspoons. The parents of a local high school have expressed concerns that the average daily sugar intake of their students is higher than these guidelines and have been pressuring school officials to limit unhealthy snack and beverage choices offered in the cafeteria and student store.
Step-by-step explanation:
The first two researches involve the single sample compared to mean of population.
The 3rd and 4th research involves comparing samples of men and women that is two individual groups.
Answer:
596.9 cm^2
Step-by-step explanation:
The surface area of a cylinder is 
where 
is the radius of the base of the cylinder and 
is the height of the cylinder.
So, the surface area of the cylinder is:
5*7x/7-1x
35x/7-1x
5x-1x
4x
(you can also do 7x/7 first)
Hope this helps
I believe the answer is d, because i cant find a pattern where x and y are directly connected.
the answer is 12 because half of the sphere is 6 unit and the other half is 6 unit then you just add them and you get 12 units
