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idontknow1993
26.02.2021 •
Mathematics
The scale on a map is 1 cm : 4 km. If two cities are 16 cm apart on the map, what is the actual distance between the cities?
4 km
16 km
64 km
256 km
Solved
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Ответ:
x=8
Step-by-step explanation:
Given is a rational expression
This term is undefined for x=-8
Domain is all values except -8
The value =0 gives
numerator =0
x-8=0
x=8
When x=8 the rational expression below equals 0