The answer to your question would be D
Answer:

Step-by-step explanation:

Answer:
2.9g/ml
Step-by-step explanation:
mass of the rock:130g
volume of the rock:45ml
d=m/v
d=130g/45ml
d=2.9g/ml
-10(1-9x) +6(x-10)
-10+90x+6x-60
96x-70
so d is the answer
Answer:
Any set of (x , y) whose distance from (4, -3) is 3 units lies on the circle.
Step-by-step explanation:
To find the distance , use the formula

If distance < 3, (x, y) lies inside the circle.
If distance > 3, (x, y) lies outside the circle.
If distance = 3 (x, y) lies on the circle.