Given: 1 || m; transversal t cuts I and m Prove: 21 and 27 are supplementary
Statement
Reason
1.1 || m; transversal t cuts I and m
1. Given
2. Z1 Z3, Z527
2. Vertical Angles Theorem
3. mZ1 = m 3, mZ5 = m27
3. Definition of congruent angles
4. 23 and 25 are supplementary
4.
5. mZ3+ m25 = 180°
5. Definition of supplementary angles
6. mZ1 + m27 = 180°
6. Substitution Property
7. Z1 and 27 are supplementary
7. Definition of supplementary angles
What is the missing reason in the proof above? Explain your reasoning.

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation:

the answer is y = 11.54

hope this : )

step-by-step explanation:

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