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Lena [83]
2 years ago
8

If w = -2 and v = -8, which of the following expressions shows the values correctly substituted in for the variables in the expr

ession w2 - v + 1?
(-2) 2 - (-8) + 1
(-2) 2 - (8) + 1
-2 2 - (-8) + 1
-2 2 - 8 + 1
Mathematics
2 answers:
Cloud [144]2 years ago
7 0
It’s A (-2) 2- (-8) + 1
ki77a [65]2 years ago
3 0

Answer:

the first one

(-2) 2-(-8)+1

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W_y=\left[\begin{array}{ccc}5&4&0\\3&6&2\\7&29&4\end{array}\right]\\\det W_y=5\cdot6\cdot4+3\cdot29\cdot0+4\cdot2\cdot7-7\cdot6\cdot0-29\cdot2\cdot5-3\cdot4\cdot4=-162\\W_z=\left[\begin{array}{ccc}5&2&4\\3&4&6\\7&3&29\end{array}\right]\\\det W_z=5\cdot4\cdot29+3\cdot3\cdot4+6\cdot2\cdot7-7\cdot4\cdot4-3\cdot6\cdot5-3\cdot2\cdot29=324\\\\x=\dfrac{\det W_x}{\det A}=\dfrac{108}{54}=2\\\\y=\dfrac{\det W_y}{\det A}=\dfrac{-62}{54}=-3\\\\z=\dfrac{\det W_z}{\det A}=\dfrac{324}{54}=6

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sladkih [1.3K]
We can subtract t from both sides to get...

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gladu [14]

Answer:

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Step-by-step explanation:

a +  \frac{1}{b +  \frac{1}{c} }  =  \frac{10}{7}  \\  \\ a +  \frac{1}{b +  \frac{1}{c} }  = 1 +  \frac{3}{7}  \\  \\ a +  \frac{1}{b +  \frac{1}{c} }  = 1 +   \frac{1}{\frac{7}{3} }  \\  \\ a +  \frac{1}{b +  \frac{1}{c} }  = 1 +   \frac{1}{2 + \frac{1}{3} }  \\  \\ equating \: like \: terms \: on \: both \: sides \\  \\ a = 1 \\  \\ b = 2 \\  \\ c = 3

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Please help meeee!! Finding a slope of a line
Lelechka [254]

Answer:

\huge\boxed{\sf Slope = \frac{5}{2} }

Step-by-step explanation:

<u>Take any two points or coordinated from the graph.</u>

Let's take (2,2) and (0,-3)

So,

\sf (x_{1},y_{1}) = (2,2)\\\\(x_{2},y_{2}) = (0,-3)

Hence,

\sf Slope = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}  \\\\Slope = \frac{-3-2}{0-2} \\\\Slope = \frac{-5}{-2} \\\\Slope = \frac{5}{2} \\\\\rule[225]{225}{2}

Hope this helped!

<h3>~AH1807</h3>
8 0
2 years ago
Read 2 more answers
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