Answer:
Each of the 7 friends could be present or not present (2 cases) at the party giving total of 27 scenarios.
Since at least one must be present we exclude the case that none of them is present. So the answer would be:
27−1=127.
Step-by-step explanation:
i actually dont know but can you report me and dont ask
If two lines are intersected by a transversal, and the alternate interior angles are equal, then the lines are parallel.
Conversely, if two lines are parallel, then the alternate interior angles formed by the transversal are equal.
So, Ray can made the conclusion that l and m are parallel because alternate interior angles are equal since m∠3 = m∠6.
The chance is 1 out of 3. The fraction is ⅓ or 1 over three.
It is tiring to type this again but... hope this helps.
Answer:
x = 75°
y = 105°
Step-by-step explanation:
Angle subtended on the circumference of the circle is half of the angle subtended on the center of the circle.
Quadrilateral PQRS is a cyclic quadrilateral.

Answer:
-7.8
Step-by-step explanation:
-7.8