Answer: D
Step-by-step explanation:
Triangle D is not a enlargement of Triangle A because it is not the same type of number. 3 is an odd number, while 60 is an even number. The answer is D.
Hope this helps!
- We are to find the time (number of minutes) is would take for 23 mg of the substance to be remaining.
- The formula for time is written as:
t = [t1/2 x In(Nt/No)] / In 2
where:
t1/2 = Half life = 4 minutes
No = Initial quantity of the sample = 90 mg
Nt = Amount of the sample left = 23 mg
t = time elapsed = ?
Hence,
t = [4 x In (23/90)] / -In 2
t = 7.8731645610906 minutes
Approximately to the nearest hundredth = 7.87 minutes
Therefore, there will be 23mg of substance remaining after 7.87 minutes.
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Answer:
Inequality: 6r - 200 - 65 
1000 and minimum of 211 people
Step-by-step explanation:
Let r = rides
6r - 200 - 65 1000
6r - 265 1000
6r 1265
r 210 
Needs 211 people to make a profit of at least $1000
3,868,000,000 is your answer. Move the decimal to the right 9 times. That gives you 6 extra 0’s.
7/10
70/100
700/1000
7000/10000
