Answer:
34 grams
Step-by-step explanation:
If the remaining sample has 30.26 grams of radioactive substance, and 11% of it decayed, that means that 30.26 grams is 89% of the original. Let the original be x.
30.26=0.89x
Multiply both by one hundred
3026=89x
Divide both by 89
34=x
x=original, so the original was 34 grams.
I think it’s none of those.
Radius is a line that reaches the middle of the circle, so like
——
CA
Answer:
Step-by-step explanation:
ITS THE THRID ONE!
Vertex (0,3)
Axis of symmetry x=0
Cody because 18 out of 20 is %90 and 24 out of 30 is %80