Answer:
Step-by-step explanation:
Start by expanding the 
into the 
bracket using the distributive method:
Now, expand the result into the remaining bracket:
Answer:
22.84, 5.83
Step-by-step explanation:
Pythagoras theorem states that: a^2+b^2=c^2
So, for red triangle, it will be: 9^2+21^2=b^2
81+441=b^2
522=b^2
square root of 522=b
22.84=b
For purple one,
3^2+5^2=a^2
9+25=a^2
34=a^2
square root of 34=a
5.83=a
Answer:
c
Step-by-step explanation:
The graph is gradually decreasing but stops
Answer:
<h2>A . 6</h2>
Step-by-step explanation:
We can get two different equations from this:
3x = 18
and
3x = -18
So:
x = 6, x = -6
x = {6, -6}
