Answer:
A
Step-by-step explanation:
there your answer
To calculate what is asked we use the formula for radioactive decay. It is expressed as follows:
An = Ao (e^(-kt))
We calculate as follows:
An = Ao (e^(-kt))
74 = 100 (e^(-k(10)))
k = 0.0301
1/2 = (e^(-0.0301t))
t = 23 hours
Hope this answers the question.
15
. 125 divided by 8 is 15.625,0,625 times 8 is 5, add 15 and 5/8 and get 15
.
Answer:
-8y-67
Step-by-step explanation:
-7(y+9)-(y+4) distribute
-7y-63-y-4 combine like terms
-8y-67
i believe this is the right answer :D
Answer:
x = 88
Explanation:
2x + 14 = 190
Subtract 14 from both sides
2x + 14 − 14 = 190 − 14
2x = 176
Divide both sides by 2
2x / 2 = 176 / 2
x = 88