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2 years ago

6

there are 5 walnut trees currently in the park park workers will plant 8 more walnut trees today how many walnut trees will the

park have when the workers are finished

1 answer:

Salsk061 [2.6K]2 years ago

8 0

Answer:13

Step-by-step explanation:

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T=21and u =4 what is \sqrt(t+U)

Aleks04 [339]

√(t + u)

√(21 + 4)

√25

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2 years ago

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Consider the following set of vectors. v1 = 0 0 0 1 , v2 = 0 0 3 1 , v3 = 0 4 3 1 , v4 = 8 4 3 1 Let v1, v2, v3, and v4 be (colu

Alona [7]

Answer:

We have the equation

$c_1\left[\begin{array}{c}0\\0\\0\\1\end{array}\right] +c_2\left[\begin{array}{c}0\\0\\3\\1\end{array}\right] +c_3\left[\begin{array}{c}0\\4\\3\\1\end{array}\right] +c_4\left[\begin{array}{c}8\\4\\3\\1\end{array}\right] =\left[\begin{array}{c}0\\0\\0\\0\end{array}\right]$

Then, the augmented matrix of the system is

$\left[\begin{array}{cccc}0&0&0&8\\0&0&4&4\\0&3&3&3\\1&1&1&1\end{array}\right]$

We exchange rows 1 and 4 and rows 2 and 3 and obtain the matrix:

$\left[\begin{array}{cccc}1&1&1&1\\0&3&3&3\\0&0&4&4\\0&0&0&8\end{array}\right]$

This matrix is in echelon form. Then, now we apply backward substitution:

1.

$8c_4=0\\c_4=0$

2.

$4c_3+4c_4=0\\4c_3+4*0=0\\c_3=0$

3.

$3c_2+3c_3+3c_4=0\\3c_2+3*0+3*0=0\\c_2=0$

4.

$c_1+c_2+c_3+c_4=0\\c_1+0+0+0=0\\c_1=0$

Then the system has unique solution that is $(c_1,c_2c_3,c_4)=(0,0,0,0)$ and this imply that the vectors $v_1,v_2,v_3,v_4$ are linear independent.

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3 years ago

Help please I give you a cookie

SIZIF [17.4K]

K and j are adjacent

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Express the ratio below in its simplest form.<br>1/3:1/4

masha68 [24]

Answer:

it is already.

Step-by-step explanation:

4/12:3/12 is 1/3:1/4

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How do you do decrease 280 by 95%

stealth61 [152]

95% = 0.95

280 - (280 * 0.95)

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