Answer:
A bicentennial is defined as the 200th anniversary of a significant event.
Step-by-step explanation:
Given that line <span>EJ is perpendicular to line CN and line CN is parallel to line KT.
Since E, J and V is collinear (are on the same straight line), thus EV is perpendicular to CN, and since CN is parallel to KT, thus EV is perpendicular to KT.
Since line C, J and N are collinear and CN is perpendicular to EJ, this means that line CN and line EJ meets at point J and since they are perpendicular, <CJV = 90 degrees.
Therefore, the correct answers are:
</span>
<span>EV←→⊥KT←→
and
m∠CJV=90°</span>
Use the formula or complete the square.
The zeroes of the quadratic can be real and rational; real and irrational; complex conjugates.
If the quadratic is ax²+bx+c, x=(-b+√b²-4ac)/2a.
If b² > 4ac the solutions are real. If b²-4ac is a perfect square, the solutions are real and rational; otherwise they’re real but irrational.
If b² < 4ac the solutions are complex.
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)