Answer:
x = 129
Step-by-step explanation:
x and 51 are same- side exterior angles and supplementary, thus
x = 180 - 51 = 129
<h3>
Answer:</h3><h3> C</h3><h3 /><h3>
Step-by-step explanation:</h3><h3>It is C.</h3>
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Answer:
f(x) = x^2 is a classic example
f( 3 ) = 9 and
f( -3 ) = 9, but
f^(-1)[9] is undefined because the result can be 3 and -3
