We notice that the upper trapezoid is symmetric to the lower one & the line of symmetry should be a horizontal line (mirror line) where any point of the upper vertices should be at equal distance (perpendicular) with the related vertices of the lower one from this horizontal line:
Note that QQ" =4 units, Hence the line of symmetry is the perpendicular to QQ' at 2 units
Answer:
x - 13 = 13 - x
Step-by-step explanation:
The commutative property of addition is a+b=b+a
The third equation is the only one not following the rule. It states that a-b=b-a, whoich is not true.
For exaple, 2-1 is not equal to 1-2.
Answer:
The angles are 91 and 89 degrees
Step-by-step explanation:
Supplementary angles add to 180 degrees and 91 is 2 more than 89
Answer:
3168 feet / minute
Step-by-step explanation:
Answer:
The quadratic equation is f(x)=20x^{2} -400x +3000.
1. This number represents the amount of money it was sold for.
2. Vertex =(10,1000)
Step-by-step explanation:
This point represents the amount of money the computer was worth at its lowest point.
