I don't have my glasss on and there are too many 1's which are messing with my eyes but all i have to say is PEMDAS
bonus question - i used to like school but at this point i just want to graduate
For the square with side length n, the diagonal measures:

<h3>
How to get the length of the diagonal?</h3>
The sidelength of the square is n, and we want to get the length of the diagonal d.
Notice that the diagonal is the hypotenuse of a right triangle whose catheti measure n.
Then we can use the Pythagorean theorem, which says that the square of the hypotenuse is equal to the sum of the squares of the cathetus;

That is the length of the diagonal.
If you want to learn more about right triangles:
brainly.com/question/2217700
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Answer:
whats the question
Step-by-step explanation:
Answer:
x=3, y= -6
Step-by-step explanation:
make 4+y= -x as equation (1) and make y=2x-10 as equation (2, then you must find a third equation either from equation (1)or (2). If you choose to find equation (3) from (2) it will be y=2x-10 , then substitute equation (3) from (1) because you can't choose (2) , then it will be 4+(2x-10)= -x
the answer will be x =2
substitute x from equation (3)
y=2x-10
y=2 (2)-10
y= -6
Answer:
x intercept = -7/2
y intercept = 21/5
Step-by-step explanation:
-6x +5y = 21
To find the x intercept, set y=0 and solve for x
-6x +5(0) =21
-6x =21
Divide each side by -6
-6x/-6 = 21/-6
x = -21/6 = -7/2
To find the y intercept, set x=0 and solve for y
-6(0) +5y = 21
5y =21
Divide each side by 5
5y/5 =21/5
y = 21/5