Answer:
12m -15
Step-by-step explanation:
Distribute
3(4m-5)
3*4m -3*5
12m -15
There will be a 25 grams left after 3240 years.
The half-life of Radium-226 is 1620 years. If we divide 3240 by 1620 the answer is 2. So that means the amount of Radium-226 will divide in half twice.
100 / 2 = 50 / 2 = 25
15. -2
16. A. The pool was originally empty
Answer:
Please see my Work, Attached.
Step-by-step explanation:
Answer:
A. Triangle B
Step-by-step explanation:
Obtuse angles are greater than 90°, but less than 180°.
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