100, because, x^2 - 20x + 100 = ( x - 10 )^2;
Answer:
3
Step-by-step explanation:
Parallel lines have equal slopes, thus
line AB is parallel to line CD
- Average Rate of Change/Slope Formula:

So using points (6,71) and (2,y), and the slope of 15, plug them into the slope formula as such:

From here we can solve for y. Firstly, solve the subtraction:

Next, multiply both sides by 4:

Next, subtact both sides by 71:

Lastly, multiply both sides by -1, and <u>your final answer will be
, or A.</u>
Answer:
°
Step-by-step explanation:
Opposite angles, angles that are opposite each other when two lines cross, are also known as vertical angles because the two angles share the same corner. Opposite angles are also congruent angles, meaning they are equal or have the same measurement.