He solution is n = –2 verified as a solution to the equation 1.4n + 2 = 2n + 3.2. What is the last line of the justification?
1 answer:
Answer:
Step-by-step explanation:
We have been given that n=-2 verified as a solution to the equation .
As n=-2 is the solution for our given equation, so it will satisfy our equation.
Let us substitute n=-2 is our given equation.
Since the value of n satisfies our equation, therefore, last line of the justification will be .
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Answer:
Therefore the length FG is 16 unit.
Step-by-step explanation:
Given:
∠E ≅ ∠G = 90°
DF bisects ∠EDG
Bisector Divide the angle in EQUAL parts
∴∠EDF ≅ ∠GDF
FE = n +5
FG = 2n - 6
To Find:
FG = ?
Solution:
In ΔEDF and ΔGDF
∠E ≅ ∠G = 90° ……….{Given}
∠EDF ≅ ∠GDF ..……..{DF bisects ∠EDG}
DF ≅ DF ……….{Reflexive Property}
ΔEDF ≅ ΔGDF ….{ By Angle-Angle-Side Congruence test}
∴ FE ≅ FG .....{corresponding parts of congruent triangles are congruent}
Substituting the values of FE and FG we get
Substituting ' n ' in FG we get
Therefore the length FG is 16 unit.