Answer:
2,139.5 lbs
Step-by-step explanation:
A certain vehicle weighs 3,890 lbs.
The front wheels carry 55% of the weight.
Then,
3,890 lbs - 100%
x lbs - 55%
Write a proportion:
Cross multiply:
Answer:
(x-3)²+(y+5)²=16
Step-by-step explanation:
The equation above is an equation of circle with a centre at (h,k) and has radius = r
Substitute h = 3, k = -5 and r = 4 in the equation.
For this case we must indicate an expression equivalent to:
By definition of power properties we have to:
Then, we can rewrite the expression as:
We also have that by definition of properties of powers it is fulfilled that:
Then, the expression is like:
ANswer:
Option B