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Answer:
1.5
Step-by-step explanation:
To find the midpoint, add the two coordinates and divide by 2
( -4+7)/2 =
3/2
1.5
The midpoint is 1.5
If i read this correctly then the answer would be
57-12= 45
45/9= 5
The answer is 5
Answer:
None
Step-by-step explanation:
Because the 3 angles do not add up to 180 degrees.
Answer:

Step-by-step explanation:
Given
Represent the temperature in Tucson with T and that in Minneapolis with M.
From the first statement, we have:

From the second, we have:
or
--- i.e. both are opposite numbers
Required
Find T
To calculate T, substitute -T for M in 
This gives:

Collect Like Terms


Make T the subject


Hence, the temperature in Tucson is 