4.8, I hope this helps you, I answered this earlier. :)
A for the first because there are 4 aces and 1 nine of hearts. that makes it 5 cards of the 52 in a deck
d for the second because there are two cards: the queen of heart and and ace of diamond out of the 52
hope this helped :)
Answer:
A.
two rays that share a common endpoint called the vertex
Step-by-step explanation:
In Euclidean geometry, an angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle.
An example of the difference of squares would be: a^2-b^2 = (a+b)(a-b)
These are how the graphs will look, they are color coded so have a look at the equations first.