Answer:
13.18651685
13.9
Explain:
890-238=652
652/890=0.7325842697 (Find out the percentage)
We know that 1 gram of Element X will be fully decayed in 18 minutes and half of it in 9 minutes.
0.7325842697x18=13.18651685
As you see 18/13.18651685 will equal to 18 (not exactly since it is rounded)
And of course we need to round it to nearest tenth. So the answer would be 13.9!
Answer:
5
Step-by-step explanation:
7.5/3= 2.5
2.5 x 2 = 5
9(v+2)
When you factor you are essentially dividing by 9 when you take it out and add parenthesis
Answer:
Rectangle.
Step-by-step explanation:
I wish I could show you on a picture.
I’m not sure if this is how you do it but:
2(8a - 12)
4(4a - 6)
8(2a - 3)
??
