The decimal computed shows that Tracy doesn't have enough for the construction.
<h3>How to calculate the length?</h3>
From the information given, Tracy has three pieces of wood that are each 8 meters long and one piece that is 7 meters long. Therefore, the addition of the lengths will be:
= (3 × 8) + 7
= 24 + 7.
= 31m
Since Tracy needs 31.5 meters of wood for a porch railing, it shows that she doesn't have enough.
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Answer: There will 486 bacteria in 31 hours.
Step-by-step explanation:
The population decay in bacteria is exponential.
Exponential function : 
, where A = initial population, b multiplication decay factor, t= time:
As per given:
Initial population: 
After 36 hours, population = 
Divide both sides by 120,000 we get
Taking natural log on both sides , we get
At x= 31,
Hence, there will 486 bacteria in 31 hours.
Answer:
BD= 19
Step-by-step explanation:
Answer:
A and E because they are the only two that multiply to 60.
Step-by-step explanation:
