1) Opposite angles in a quadrilateral add up to 180 degrees. Thus, the opposite angle would be 180 - 82, which would be 98 degrees.
2) It would be approximately 90 degrees, as it is a quarter of a 360 degree circle (360 / 4).
Where is the figure KingBroski?
You multiple -7 by whats in the parentheses
(A negative number multiplied by a positive equals a negative number)
You then add 21 to each side in order to isolate the "x" or "-7x" by doing the opposite of the number which is -21
Combine the like terms
Now divide the number 35 by -7x (numbers are divided by "x")
35 divided by -7=-5
35÷-7=-5
Hamilton's quaternions are an example of non-commutative ring. If you are not familiar with them, they are similar to complex numbers, except for the fact that there are three roots of -1: the ring is generated by
Which means that a generic element is appears as follows:
The rules for additions are the usual: you sum like terms. As for the mutliplicaitons, you work like this: