A56-inch board is to be cut into three pieces so that the second piece is 3 times as long as the first piece and the third piece
1 answer:
You might be interested in
Answer:
r =
Step-by-step explanation:
The distance from the centre to a point on the circle is the radius r
Calculate r using the distance formula
r =
with (x₁, y₁ ) = (0, 0 ) and (x₂, y₂ ) = (2, 5 )
r =
=
=
=
Answer:
- one negative real root in [-5, -4]; two complex roots
- the complex roots cannot be isolated in the same way.
Step-by-step explanation:
A graphing calculator is a wonderful tool for this. It shows the one real root to be near -4.062, so between -5 and -4.
The value of the cubic at x = -5 is -315; at -4 it is +15, so the root is definitely between those values.
The one real root is isolated to being between (-5, -315) and (-4, 15). The complex roots are not isolated.
