37.5% of n is 81
0.375n=81
n=216
Answer:

Step-by-step explanation:
Given


Required
Write the equation of the function 
Express the function as:

In: 

--- (1)
In 

--- (2)
Divide (2) by (1)






Substitute 5/6 for b in (1)






The function: 

Answer:
The answer is 3
Step-by-step explanation:
I put the answer simplified if needed.
The given equation is:
ax2 + bx + c = 0
We have the resolvent is:
x = (- b +/- root (b2 - 4ac)) / (2a)
The discriminant is:
b2 - 4ac = 0
The solution will be:
x = (- b) / (2a)
Thus, the equation has a real solution.
Answer:
option B
Answer:
Step-by-step explanation:
1. To find the area of a semicircle the formula is

The square

2. Triangle

Rectangle


3.
Semicircle

Square

