Answer:
Step-by-step explanation:
B. The system has infinitely many solutions. The system has one solution.
You can pull out a greatest common factor (GCF).
1. GCF: x
2. GCF: p
3. GCF: 8
9=5 -y/3
-5
3=-y/3
cross multiply
1=-y
y=-1
Answer:
D. 21.
Step-by-step explanation:
The general form of the equation of a circle is:
(x - a)^2 + (y - b)^2 = r^2 where r is the radius.
Comparing:
(x + 5)^2 + (y + 7)^2 = 21^2
So r^2 = 21^2
making r = √21^2
= 21.
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