Answer:
y = 2 sqrt(2) - 2 or y = -2 - 2 sqrt(2) thus B. is the correct answer
Step-by-step explanation:
Solve for y:
-y^2 - 4 y + 4 = 0
Multiply both sides by -1:
y^2 + 4 y - 4 = 0
Add 4 to both sides:
y^2 + 4 y = 4
Add 4 to both sides:
y^2 + 4 y + 4 = 8
Write the left hand side as a square:
(y + 2)^2 = 8
Take the square root of both sides:
y + 2 = 2 sqrt(2) or y + 2 = -2 sqrt(2)
Subtract 2 from both sides:
y = 2 sqrt(2) - 2 or y + 2 = -2 sqrt(2)
Subtract 2 from both sides:
Answer: y = 2 sqrt(2) - 2 or y = -2 - 2 sqrt(2)
2. 2 increasing
3. Y=-x +9 decreasing
4. 2 increasing
5. 6 increasing
6. Y=-3x+1 decreasing
Distance = 3 units .....................
These triangles are congruent by the hypotenuse-leg theorem, which states that if the hypotenuse and a leg of two right triangles are congruent, the triangles are congruent.
Answer:
B) HL
Side note: There is not such thing as AAA congruence. (: