A) 60o because similar triangles have corresponding angles equal so then by Angle Sum Property of Triangles you will get 60o
Answer: The second number is 26
Step-by-step explanation:
To solve this problem you must apply the proccedure shown below:
1. Let's call:
x: The first even number.
x+2: the second consecutive even number.
x+4: the third consecutive even number.
2. So, you know that the sum ot the 3 consecutive numbers is 78, therefore, you must add them, as you can see below:

3. Substitute the value obtain into x+2. Therefore, the second number is:

Answer:
-2
+ 9
Step-by-step explanation:
0
+ (-7x) + 1
+ <u>-2</u>
<u> + 7x + 8</u>
-2
+ 0x + 9
or
-2
+ 9