Mathematics
13.06.2023 00:14
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Which of the following is not a true statement about the angles shown below? A H

Which of the following is not a true statement about the angles shown below? A H 3x x + 15 Z D x + 15 A. The measure of ZAHD is 30Β°. B. The measure of ZHDZ is 45Β°. C. The measure of ZHZD is 45Β°. D. The value of x is 30.​
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AngelOfLove
AngelOfLove
4,7(78 marks)

A is not true

Step-by-step explanation:

PLEASEHELP4528
PLEASEHELP4528
4,4(36 marks)

\large\boxed{1.\overline{21}=\dfrac{40}{33}}

Step-by-step explanation:

x=1.\overline{21}\\\\x=1.212121...\qquad\text{multiply both sides by 100}\\\\100x=121.212121...\\\\\text{subtract x from 100x}\\\\100x-x=121.212121...-1.212121...\\\\99x=120\qquad\text{divide both sides by 99}\\\\x=\dfrac{120}{99}\\\\x=\dfrac{120:3}{99:3}\\\\x=\dfrac{40}{33}

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