Answer:
x = 15.49
Step-by-step explanation:
As you can see this is a right-angled triangle due to the right angle symbol, we can use Pythagorean theory to find the unknown length:

In this case, we know C and B but not A so:

Now plug the values in:



Square root the answer to get A:

a = 15.49
x = 15.49
Hope this helps!
Answer:
7.3%
Step-by-step explanation:
First you have to find out what 38 out of 41 is as a percentage
This is 92.68%
so now we have to do
100.00 - 92.68 this is 7.32
But you said round to the nearest tenth so it would actually be rounded down to 7.3%
You can put it in a graphing calculator.
X Y
-2 59.64
-1 59.82
0 60
1 60.18
2 60.36
Thats it. and you just graph it