Answer: you do 9.9 squared and then you times it by 1.79 so you get =5.632103515 so then you estimate it to 5.6
Step-by-step explanation:
Answer: ab -12
Given that y is 12 less than the product of a and b.
The product of a and b is the multiplication of a and b:
a x b = ab
12 less than the product will mean that we need to take away 12 from ab, so
y = ab - 12
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Answer: ab - 12
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Answer:
4.8 hours
Step-by-step explanation:
The formula for half life is given as:
t½ = t × In(2)/In(No/Nt)
Where
t½ = Half life
t = time in hours = 4
No = Initial amount = 10mg
Nt = Final amount after 3 hours = 6.5 mg
t½ = 3 × In(2) /In(10/6.5)
t½ = 4.8271216522281 hours
Approximately = 4.8 hours