Answer:
This is not a function.
Step-by-step explanation:
Note, that set A contains 3 elements that only map to 2 elements in set B. A function would require that each element of set A to match to only one element of set B.
Since set B contains an element with no mapping to an element in set A, this does not represent a function.
Step-by-step explanation:
92°
as the has given pair of angle is Alternate Exterior angle so they have same values.
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Answer:
x = 18
Step-by-step explanation:
This problem can be solved using concept of Pythagoras theorem.
Pythagoras theorem states that in a right angled triangle, if "a" and "b" are sides containing the right angle and h is hypotenuse then the relation between them is 
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Given in the problem
a = 24
b = x
h = x+12
applying Pythagoras theorem

for (x+12)^2 we have used formula 
Thus, value of x is 18.