Answer:
Step-by-step explanation:
there are function that "invert" each other..
subtraction inverts addition...
3+2 = 5 ... 5-2 = 3
division inverts multiplication
5*2 = 10 ... 10/2 = 5
Using that concept, "factoring" is basically the inverse of multiplication
3x^2 + 9x can be factored to 3x(x+3)
if you multiply that out it reverts back to the original equation
so x^2 + 5x + 6 factors to (x+3)(x+2)
if you multiply that out (foil it)
you get x^2 + 5x + 6
Answer:(-5.6, -1.4)
Step-by-step explanation:
Answer:
See below
Step-by-step explanation:
The number you described is the same as 
where the sine of an angle is the ratio between a right triangle's opposite side to the angle and the hypotenuse. So, in this case, if we had a right triangle with a height of 
units and a hypotenuse of 2 units, the ratio between the two sides will result in the value you provided. This right triangle in particular would be a 30-60-90 triangle.
In the case of a unit circle, it’s the y-coordinate of the point where a 60° angle in the standard position intersects a unit circle and a right triangle is created from that.
The solution is a because is the coset to the number I have
Answer:
The two pieces of information are needed to prove that line AB is a perpendicular bisector of line CD are:
m∠AGD = 90° ⇒ B
CG = GD ⇒ C
Step-by-step explanation:
If line m is the perpendicular bisector of line AB and intersect it at point D
- The angles around point D are right angles (the measure of each one 90°)
Let us use these facts to solve our question
Look at the given figure
∵ Line AB is the perpendicular bisector of line CD
∵ Line AB intersects line CD at point G
∴ G is the midpoint of CD
→ That means the point G divides the line CD into two equal parts
CG and GD
∴ CG = GD
∵ AB ⊥ CD at G
∴ ∠AGD and ∠AGC are right angles
→ the measure of the right angle is 90°
∴ m∠AGD = m∠AGC = 90°
The two pieces of information are needed to prove that line AB is a perpendicular bisector of line CD are:
m∠AGD = 90° ⇒ B
CG = GD ⇒ C
