Answer:
B. Never
Step-by-step explanation:
When a number is irrational, it means that it cannot be written as a fraction.
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Answer:
C. in; in; in²
Step-by-step explanation:
Perimeter and height are given in regular units. Area is given in square units.
Answer:
A and C are negative B and D are positive
Step-by-step explanation:
Answer:
Undefined slope.
Step-by-step explanation:
The formula should be y2 - y1 over x2 - x1
Points ( 20,-16 ) and ( 19, -16 )
So ( -16 - ( -16 ) ) over ( 19 - 20 )
0 over -1
The slope is 0. Undefined.
Consecutive numbers differ by one. So, if 
is the first, the three numbers are
The sum of the first and third integer is
