4 2/3 is equal to 4 8/12. 3 and 1/4 is equal to 3 3/12. 4 8/12- 3 3/12 = 1 5/12. 1 1/2 would be a better estimate.
Answer:
121 inches squared
Step-by-step explanation:
If the dimensions are multiplied by 1/4, we have that the surface area will by multiplied by (1/4)^2, as the dimensions are in inches and the surface area is in inches squared.
So, If the original surface area is 1936 inches squared, the new surface area will be:
New surface area = 1936 * (1/4)^2 = 1936 / 16 = 121 inches squared.
For this case we have that the equation that describes the height is:
Where,
v: initial speed
c: initial height
Substituting values we have:
Then, to find the time, we use the quadratic formula:
Substituting values we have:
Rewriting:
We discard the negative root because we want to find the time.
We have then:
Answer:
D. 
The correct answer it’s 3
