Answer:
(1,3)
Step-by-step explanation:
The given function is
Factor 2 from the first two terms
Add and subtract the square of half the coefficient of x.
Let us create perfect square trinomial
This implies that:
Therefore the vertex is (1,3).
We got this by comparing to
Well, one angle has one share of the linear angle, and the other one has five shares. All together, they add up to six shares of the linear angle.
BUT ... a linear angle adds up to 180°. So each share must be (180°/6) = 30°.
The smaller one (one share) is 30°, and the larger one (5 shares) is 150°.
Circumference = 2 pi r = 10
r = 10 / 2 pi
75% of the error = 0.75 * pi * (10 / 2pi)^2
= 5.968 square unts
6 to nearest square unit
- 40 ≥ 8 b
switch sides:
8b ≤ - 40
divide both sides by 8 :
8b / 8 = - 40/8
refine:
b ≤ - 40 / 8
b ≤ - 5
hope this helps!
