For the half-life of a certain substance, the equation that would best represent the scenario is,
At = Ao(0.5^t/n)
where At is the amount at any time t, Ao is the original amount, and n is half-life. Substituting the known values,
At = (220 mg)(0.5^(396/72)
At = 4.86 mg
Thus, after 396 days, there will only be 4.86 mg of Terbium-160.
Convert to base 10
2×3² + 0×3¹ + 1×3^0 = 18 + 0 +1 = 19 base 10
so convert 19 to base 8
19 base 10 = 23 base 8
D is your answer
73/100 is already reduced
Answer:
The situations that can be represented as an absolute value of 10 are:
- Determine the size of Harold’s debt if he owes $10.
- Determine how far −10 is from zero on a number line.
- 10 degrees is how many degrees above zero?
Step-by-step explanation:
- Determine the size of Harold’s debt if he owes $10.
Even though he owes $10, which is reflected as -$10, the size of the debt is the absolute value ($10).
- Determine how far −10 is from zero on a number line.
The distance is expressed in positive numbers, or using the absolute value.
- 10 degrees is how many degrees above zero?
The distance of the temperature is expressed in positive numbers, or using the absolute value.
