-5x(x+3)-7(x-3)/x^2-9= -5x^2-15x-7x+21/x^2-9= -5x^2-22x+21/x62-9
Answer:
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Step-by-step explanation:
please
Answer:
The percentage maybe went up because of air pollution, and global warming
Step-by-step explanation:
They will be 12 miles apart a 2:30 pm, Trevor runs at a speed of 5 miles per hour, which they both start at noon which means, roughly in 12 miles it will be 2:30pm.
Answer: convenience sampling
Step-by-step explanation:
Convenience sampling is also referred to as opportunity sampling or accidental sampling and it occurs when a sample is selected from the population that is convenient and close to hand for the researcher. It's usually used during pilot testing.
Convenience sampling is such that the primary data source that are first available will be used for the research without any additional requirements being made.
