3 years ago

What is 8,663,943,526 rounded to the nearest hundred thousand?

Mathematics

1 answer:

Sloan [31]3 years ago

4 0

8,663,900,000
.......................

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Finding Ordered Pairs from an Equation For the equation below, x is the input and y is the output. Choose the ordered pair that

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2 years ago

I need answer asap pls help

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Question 8

sasho [114]

we are given

system of equations

First equation is

$3x-2y=31$

Second equation is

$3x+2y=-1$

now, we can find augmented matrix

$A=\begin{pmatrix}3&-2&31\\ 3&2&-1\end{pmatrix}$

now, we can change it into reduced row echelon form

step-1: multiply the 1st row by 1/3

$A=\begin{pmatrix}1&-2/3&31/3\\ 3&2&-1\end{pmatrix}$

step-2:add -3 times the 1st row to the 2nd row

$A=\begin{pmatrix}1&-2/3&31/3\\ 0&4&-32\end{pmatrix}$

step-3:multiply the 2nd row by 1/4

$A=\begin{pmatrix}1&-2/3&31/3\\ 0&1&-8\end{pmatrix}$

step-4: add 2/3 times the 2nd row to the 1st row

$A=\begin{pmatrix}1&0&5\\ 0&1&-8\end{pmatrix}$

so, we get

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Answer is (5,-8)

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3 years ago

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Joe thinks the area to be pantries on wall 2is 84 square feet.

lilavasa [31]

Please put a picture next time :)

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1 year ago