3 years ago

What would be the scale factor?

Mathematics

1 answer:

icang [17]3 years ago

7 0

The scale factor would be 3

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What is 8 and 21/40 in decimal form? If don't uderstamd what is 8 and 21 over 40 in decimal form? Plz help thx✌️

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It is 8.525. what u do is 21÷40 and get .525 and then u add the 8 in the front and get 8.525

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3 years ago

What is the answer to this question

julsineya [31]

Step-by-step explanation:

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A variable has a mean of and a standard deviation of . observations of this variable have a mean of and a sample standard deviat

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2 years ago

What is the volume of a rectangular prism that is 16 meters by 25 meters by 37 meters?

ElenaW [278]

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14,800

Step-by-step explanation:

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3 years ago

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

$x=5,y=-8$

Answer is (5,-8)

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3 years ago

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