Is there more context to the question?
Answer:
10^9 is 10 × 10^8, since 10^9= 10×10×10×10×10×10×10×10×10
Answer:
substitude (2x+4) for y in the second equation
Answer:
1. diameter/2 2. area divided by pi and then the square root of the radius 3. circumference divided by pi and then divided by 2
Step-by-step explanation:
just reverse the equations for area and circumference.
Answer:
B
Step-by-step explanation:
36 is a perfect square of 6^2
