The quadratic formula is:
and 
In this case, a = 2, b = -3, and c = -7
So, we can plug in the numbers to get:
and 
Simplifying, we get:
and 
You need to use a calculator to find what these would be in decimal form. The answer, rounded to the nearest tenth, is: x = 2.8, x = -1.3
Decimal form= 7.5 , fraction form = 15/2 , improper fraction= 7 and 1/2
2.86-2.81=0.05
(0.05/3.86)x100=1.75%
Answer:
5
Step-by-step explanation:
all you have to do is divide 49.15 by 9.83.