Answer:
one real solution
Step-by-step explanation:
the equation simplified is (x+4)²
Step-by-step explanation:
a) The measure of angle 7 is also 47 degrees. We know this because angle 5 and angle 7 are vertical angles and vertical angles are always equal.
b and c) Since we know that a straight line has an angle of 180 degrees and that the sum of angle 5 and angle 6 will add to this, we can use that to find the value of x like this:

Answer:
B. -9
Step-by-step explanation:
The equation would be f(-3)=-3^2
3*3 is 9
Add the - back on, and you get -9
I hope this helps!
Answer:
2
Step-by-step explanation:
Because they are using the number line: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20