we can use formula
where
fL is listener frequency
fs is siren frequency
va is the speed of sound in air
vs is police car speed
so, we have
now, we can change it into m/s
now, we can plug it
..............Answer
What is the slope of the line that passes through the points (4, 8) and (-3, 1)?
1 answer:
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Answer:
40%
Step-by-step explanation:
The whole rectangle is split into 5 parts. Two out of 5 parts are shaded.
Set up a fraction:
Convert into a decimal:
Multiply the decimal by 100 to get the percent:
So, forty percent of the rectangle is shaded.
Hope this helps.