Answer:
-4x+26
Step-by-step explanation:
Hello,
The 3th angle of the triangle is the supplement of 3x-8:
180-(3x-8)=180-3x+8=188-3x
The sum of all angles of the triangle is 180
180=2x+21+188-3x
==>180=-x+21+188
==>x=21+188-180
==>x=21+8
==>x=29
Answer:
729 and -2187 are the next on the list
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Step-by-step explanation:
Given
9,-27,81, -243,..
Required
Determine the next two numbers
The first step is to determine the formula that guides the pattern
Start by expressing all elements in the pattern as a base of -3
This gives:
Check if it corresponds with the given pattern
Let the above expression reflect their position in the pattern
By comparing each element;
We have that
The next two numbers is when n = 5 and n = 6
When n = 5
When n = 6
Hence;
<em>729 and -2187 are the next on the list</em>