positive = greater than 0.
Therefore we have the inequality:
|add 7 to both sides

Answer:
If what the sin 90º
Step-by-step explanation:
Answer:
just do it by Pythagoras theoram
Step-by-step explanation:
because it is a right angle
Answer:
<h2>12</h2>
Step-by-step explanation:
To evaluate 4P2, we will use the permutation formula as shown;
nPr = 
4P2 = 

4P2 = 12
Answer:
(0,1)
Step-by-step explanation:
There are infinite number of (x,y) pairs in a line, so it should be easy to use any value for one of the coordinates (x or y) and find what the other coordinate should be. We can use a simple value that would make our solving easy, for example x = 0. We use this value to replace x in the equation of the line, and solve for y:

Therefore the pair (0,1) is a solution for the given equation.