Mean is 30,median is 30.5,mode is 31.
For this, we will be using the quadratic formula, which is
, with a=x^2 coefficient, b=x coefficient, and c = constant. Our equation will look like this: 
Firstly, solve the multiplications and the exponents: 
Next, do the addition: 
Next, your equation will be split into two:
. Solve them separately, and your answer will be
Answer:
Step-by-step explanation:
If 3/4 of the lot was full and the lot holds 1000 vehicles, then there are 3/4(1000) in the lot. 3/4(1000) = 750. That means there are 750 vehicles in the lot. If 200 cars are in the lot, then 750 - 200 = 550 trucks.
Answer:
Step-by-step explanation:
I don't really know sorry I am not smart I only sign up to see the answers
Answer:
27.8%
Step-by-step explanation:

0.722 = 72.2%
The % reduction is:
(100-72.2)% = 27.8%
Hope this helps