That's of course the 30/60/90 right triangle.
If you need to see the algebra, the acute angles in a right triangle are complementary, adding to 90 degrees:
x + 2x = 90
3x = 90
x = 30
Answer:
2 1/3 has not been thrown away.
Step-by-step explanation: You just basically subtract it but I'm not sure about the denominator, but here is the work.
6 1/2 - 4 2/3 = 2 1/3
The answer is the fourth one
Answer:
>
Step-by-step explanation:
When it is converted it is -4.4
