3 years ago

I need help on on which one is the answer

1 answer:

7 0

Answer:

{yI -5 $\leq$ y $\leq$ -1}

Step-by-step explanation:

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soldier1979 [14.2K]

Given that:

$\Delta DEF\cong\Delta LJK,$

we get that:

$\begin{gathered} m\angle D=m\angle L, \\ m\angle E=m\angle J, \\ m\angle F=m\angle K. \end{gathered}$

Now, recall that the interior angles of a triangle add up to 180°, therefore:

$\begin{gathered} m\angle D+m\angle E+m\angle F=180^{\circ}, \\ m\angle D=180^{\circ}-m\angle E-m\angle F. \end{gathered}$

Substituting:

$\begin{gathered} m\angle F=42^{\circ}, \\ m\angle E=m\angle J=81^{\circ}, \end{gathered}$

in the previous equation, we get:

$m\angle D=180^{\circ}-42^{\circ}-81^{\circ}=57^{\circ}.$

<h2>Answer: </h2> $m\angle D=57^{\circ}.$

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2 years ago

Alborosie

I might be wrong but don’t you need two equations to do the elimination process?

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3 years ago

yanalaym [24]

The answer is that 48 have been planted with bean and corn and 24 acres is beans and another 24 acres is corn

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3 years ago

Nonamiya [84]

Answer: 18.4 inches

Step-by-step explanation:

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2 years ago

snow_tiger [21]

Answer: option B

Step-by-step explanation:

i took the test lol

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3 years ago