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3 years ago

Ms. Amos has a rectangular pool table and Ms. Wheeler has a miniature ping pong table in the shape of a rectangle.

Mathematics

1 answer:

ANTONII [103]3 years ago

4 0

Answer:

Step-by-step explanation:

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2 If A= 4 3 find A1 using elementary row operations.

MA_775_DIABLO [31]

Answer: $A^{-1}=\left[\begin{array}{cc}\frac{3}{2}&-\frac{1}{2}\\-2&1\end{array}\right]$

Step-by-step explanation:

$\left[\begin{array}{cc}2&1\\4&3\end{array}\right]=\left[\begin{array}{cc}1&0\\0&1\end{array}\right]$

$\dfrac{1}{2}Row\ 1\rightarrow\left[\begin{array}{cc}1&\frac{1}{2}\\4&3\end{array}\right]=\left[\begin{array}{cc}\frac{1}{2}&0\\0&1\end{array}\right]$

$Row\ 2 -4 \ Row\ 1\rightarrow \left[\begin{array}{cc}1&\frac{1}{2}\\0&1\end{array}\right]=\left[\begin{array}{cc}\frac{1}{2}&0\\-2&1\end{array}\right]$

$Row\ 1-\dfrac{1}{2}\ Row\ 2 \rightarrow \left[\begin{array}{cc}1&0\\0&1\end{array}\right]=\left[\begin{array}{cc}\frac{3}{2}&-\frac{1}{2}\\-2&1\end{array}\right]$

5 0

3 years ago

A number cube is rolled 14 times and the results are recorded in the table.

marshall27 [118]

Answer:

D.5/14

Because 4 appeared five times over the total

8 0

2 years ago

Now consider just the second sentence of the multistep word problem. Sentence 2: If four times the brother's age is subtracted f

Natalka [10]

Answer:

4b - 3s = 40

4b = 40 + 3s

b = 40 - 3s/4

4b - 3s = 40

4b - 40 =3s

4b - 40 /3 = s

8 0

3 years ago

F(x)=\sqrt{\frac{20 x}{x^2-49}}

Lyrx [107]

Answer:

Great use of desmos! But since one line doesn't touch the x- axis it would have to be +infinity. the other line does touch at (0,0) so the x would be 0. This is a question that you should ask your teacher about for sure.

Sorry I cant be more help!

8 0

3 years ago

Help me please Asap

Eduardwww [97]

Answer:

it is the last one {-4, -1, 0, 1, 2}

Step-by-step explanation:

6 0

2 years ago