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2 years ago

Use the protractor to measure these angles: M<AJK = m<BKU = m<CLJ =

Mathematics

2 answers:

rosijanka [135]2 years ago

6 0

Answer:

Step 4:

90, 90, and 90

Steps 5, 6, & 7:

The next part is

BK/KB= 2.2 units

AJ/JA= 5.6 units

CL/LC= 3.8 units

Step 8:

corresponding segments

Step 9:

yes

horsena [70]2 years ago

4 0

Answer: the answer M< AJK = 90, M< BKJ = 90 and m< CLJ = 90. ALL 90

Step-by-step explanation: I just got it wrong and it told me the answer.

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Nadusha1986 [10]

$\bf \begin{cases}
\quad3x+2y=-9\\
-10x+5y=-5
\end{cases}$

so hmm the idea behind the elimination, is to make the value atop or below, of either variable, the same but with a negative sign

so hmmm say... we'll eliminate "y"

so... let's see, we have 2y and 5y, both positive
what do we multiply 2y to get a negative -5y, that way, -5y +5y = 0 and poof it goes

well let's see, let's try "k" $\bf 2yk=-5y\implies k=-\cfrac{5y}{2y}\implies k=-\cfrac{5}{2}$

so.. if we multiply 2y by -5/2, we'll end up with -5y

well, let's multiply that first equation then by -5/2

$\bf \begin{array}{rllll}
3x+2y=-9&\qquad\times -\frac{5}{2}\implies &-\frac{15}{2}x-5y=\frac{45}{2}\\\\
-10x+5y=-5&\implies &-10x+5y=-5\\
&&---------\\
&&\frac{-35}{2}x+0\quad=\frac{35}{2}
\end{array}\\\\
-----------------------------\\\\
\cfrac{-35}{2}x=\cfrac{-35}{2}\implies \cfrac{-35x}{2}=\cfrac{-35}{2}\implies x=\cfrac{2}{-35}\cdot \cfrac{-35}{2}
\\\\\\
\boxed{x=1}$

so.. now we know x = 1.... so let's plug that in say hmmm 2nd equation

$\bf -10(1)+5y=-5\implies -10+5y=-5\implies 5y=5\implies\boxed{ y=1}$

3 0

3 years ago

Use the protractor to measure these angles: M<AJK = m<BKU = m<CLJ = ​

Use the protractor to measure these angles: M<AJK = m<BKU = m<CLJ =