Answer: Side A = 15cm
Side B = 30cm
Side C = 31cm
Step-by-step explanation:
I just guessed and got it first try. Sorry if it's wrong. I'm not smart.
For example, you can do
2(x+y)+3(x+2y)=5x+8y
I think is (15, 10) I think it that
Answer:
Option 3 and 4
Step-by-step explanation:
We have to find the solutions represented by point A on graph
The point A is represented by (-6,7i)
Lets check all options one by one
1.
This option is not correct
2.
This option is also not correct
3.
This solution is same as point A so this option is correct
4.
Solution same as point A so this is correct option.
5.
Not correct
The correct options are option no 3 and 4 ..
Saying arccos(-√2/2) is the same as saying cos(x)=-√2/2. This is one the trigonometric values you should have memorized if you are taking a a trig class. In order to get √2/2, x must be equal to 45° or pi/4. But since it is a negative √2/2, the answer would be -45°or -pi/4.
There are technically multiple answers to this, but since you weren't given a range for the answers, I would stick with -45°.
Hope this helps
