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3 years ago

PLEASE HELP ASAP ILL GIVE BRAINLIEST

Mathematics

1 answer:

ICE Princess25 [194]3 years ago

3 0

it’s a because you need all those figures to make it happen

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D/-2 +5 = 14 what is d

mixer [17]

Answer:

d could be -18

Step-by-step explanation:

Add 5 on both sides

Multiply both sides by -2

3 0

3 years ago

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I was so confident in this question but I still got it wrong:( help!!

VashaNatasha [74]

Answer:

I believe it's a. I've seen you posting a lot of questions I hope you do good on your resubmission.

5 0

3 years ago

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A=(2 3)<br> (-1 4)<br><br> Calculate A^2-6A+11I

disa [49]

Answer:

A² - 6A + 11 I = $\left[\begin{array}{ccc}0&0\\0&0\end{array}\right]$

Step-by-step explanation:

Given the matrix

$A=\left[\begin{array}{ccc}2&3\\-1&4\end{array}\right]$

Calculate A² - 6A + 11 I

$A^2 = A*A= \left[\begin{array}{ccc}2&3\\-1&4\end{array}\right] *\left[\begin{array}{ccc}2&3\\-1&4\end{array}\right] = \left[\begin{array}{ccc}2*2-3*1&2*3+3*4\\-1*2-4*1&-1*3+4*4\end{array}\right] =\left[\begin{array}{ccc}1&18\\-6&13\end{array}\right]$

$6A=6*\left[\begin{array}{ccc}2&3\\-1&4\end{array}\right] =\left[\begin{array}{ccc}12&18\\-6&24\end{array}\right]$

$11 I = 11 * \left[\begin{array}{ccc}1&0\\0&1\end{array}\right] =\left[\begin{array}{ccc}11&0\\0&11\end{array}\right]$

∴ A² - 6A + 11 I = $\left[\begin{array}{ccc}1&18\\-6&13\end{array}\right] -\left[\begin{array}{ccc}12&18\\-6&24\end{array}\right] +\left[\begin{array}{ccc}11&0\\0&11\end{array}\right] =\left[\begin{array}{ccc}0&0\\0&0\end{array}\right]$

8 0

3 years ago

Please help :((((( only if you know though pls.

schepotkina [342]

Answer:

$x=14$

Step-by-step explanation:

The angles of a triangle add to 180, add the angles and solve for x

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3 years ago

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Can someone please help me out

ira [324]

$BD \: is \: the \: bisector \: of \: \widehat{ABC} \Rightarrow \widehat{ABD}=\widehat{CBD} \\\Rightarrow \widehat{ABC} = \widehat{ABD} + \widehat{CBD} = 2\widehat{ABD} = 2 \times 39 = 78° \\ \Rightarrow D. \: 78°$

4 0

4 years ago

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