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2 years ago

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Aretha is rappelling down the side of a cliff. The graph shows her height above the ground in feet as a function of time in seco

nds as she descends. What is Aretha’s height above ground when she begins rappelling down? At!what rate does she descend?

1 answer:

ElenaW [278]2 years ago

6 0

Answer:

Oh

Step-by-step explanation:

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Step-by-step explanation:

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3 years ago

Use the matrix method to solve the system of equations 2 x + 4 y = 8 and 6 x + 3 y = -3. The resulting matrix is:

attashe74 [19]

Answer:

$x=-2,y=3$

Step-by-step explanation:

The given system of equations is

$2x+4y=8$

and

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The augmented matrix is

$\left[\begin{array}{ccc}2&4&|8\\6&3&|-3\end{array}\right]$

$\frac{1}{2}R_1\to R_1$

$\left[\begin{array}{ccc}1&2&|4\\6&3&|-3\end{array}\right]$

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$\left[\begin{array}{ccc}1&0&|-2\\0&1&|3\end{array}\right]$

Hence $x=-2,y=3$

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3 years ago

I need help on this home work

ZanzabumX [31]

B is the correct answer

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2 years ago