Is 12 Because the pattern is 2+1=3; 4+2=6;
6+3=9; 8+4=12 and 10+5=15
I think it is 76 ....... I may be wrong
Answer: if this is a triangle, then all triangles add up to 180 degrees. I dont know if this helps... sorry
Step-by-step explanation:
Answer:
1/3 <x
Step-by-step explanation:
2x + 4 < 5x + 3
Subtract 2x from each side
2x-2x + 4 < 5x-2x + 3
4 < 3x+3
Subtract 3 from each side
4-3 <3x-3+3
1 <3x
Divide each side by 3
1/3 <3x/3
1/3 <x
Answer:
x = 90°
Step-by-step explanation:
Given
- 4 - 6cosx = - 4 - 4cosx ( add 4cosx to both sides )
- 4 - 2cosx = - 4 ( add 4 to both sides )
- 2cosx = 0, hence
cosx = 0
x = 
(0) = 90° for 0 ≤ x ≤ 180
