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what is the common ratio of the sequence? -2, 6, -18, 54,..

-3
-2
3
8

Find the distance between (0,5) & (-4,2)

What are the domain and range of the function f(x)=2^x+1

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label?