Answer:
arithmetric
Step-by-step explanation:
the difference is so simple
Answer: It is I believe because that's how scientific notation looks likes
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
(x-2)^2
x^2-4x+4
-3^2-4(-3)+4=7
Answer:
D. x = 10
Step-by-step explanation:
Perimeter = the sum of all sides lengths
Perimeter = 30 (in this case)
so...

Step 1. Dividing 3 to both sides

Step 2. Add 5 to both sides

Step 3. Solve for x
Since x + x = 20, to solve for one of the x means solving for the other x
so since 2 x's are being added with the same value, divide 20 by 2.
x = 10
It could be 30 -12 =18. 30 x and y is 18