Answer:
x=0
Step-by-step explanation:
substitute y=0
0= -x^2
then swap the sides
-x^2=0 ,
change the signs
x^2=0
set the base equal to 0
x=0
Hello there.
Explanation:
↓↓↓↓↓↓↓↓↓↓

First, subtract by 4 from both sides.

Second, simplify.

Third, divide by -1 from both sides.

Fourth, simplify.

Next, add by 3 from both sides.

Then simplify.

Therefore, divide by 2 from both sides.

Finally, simplify.

<u><em>Answer⇒⇒⇒⇒x=2</em></u>
Hope this helps!
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-Charlie
Answer:
78
Step-by-step explanation:
180-90-12=78
Answer:
D. be congruent
Step-by-step explanation:
vertical angles are angles that are across from each other on intersecting lines and they are always congruent
long way
12 x 11 x 10 x 9 x 8 x 7 x6 x5 x4 x3x2/ 10x9x8x7x6x5x4x3x2x
but you can shorten that by crossing out identical numbers so you get 12 x 11
12 x 11 = 132 combinations