1. . D . Identity , when you odd both properties it will always to be true on both sides
-15y + 19y -2y
-15+19-2
4-2
2y
The answer is <span>angle addition postulate
proof
</span><span>mTRV + mTRS = 180°, both angles are called supplementary angles, their sum is 180°</span>
Answer:
Stayed the same
Step-by-step explanation:
Altogether, there are 8 marbles in the bag (before Keenan adds the other marbles.) The probability so far that he draws a yellow marble is 4/8, or 1/2.
When he adds the marbles to the bag, there are 10 marbles altogether and 5 yellow marbles. The probability now is 5/10, or 1/2.
The probability has stayed the same.