51, because 39+12=51. You just add both parts of the tree. Please Rate Brainliest.
Answer:
A
Step-by-step explanation:
x^2 + 7x+ 10. factors out to (x - 2)(x + 5)
Answer:
B. y + z = x
Step-by-step explanation:
x is an exterior angle of the triangle.
y and z are the opposite angles opposite the exterior angle.
The exterior angle theorem of a triangle states that the measure of an exterior angle equals the measure of the sum of the two angles opposite the exterior angle.
Thus:
y + z = x
Answer:
they are identical. proved below.
Step-by-step explanation:
- formula:

using the formula to proof:



True. proved that they are identical.
Answer:
25
Step-by-step explanation: