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3 years ago

1.26 - 0.06 (2 marks)

Mathematics

1 answer:

Juliette [100K]3 years ago

4 0

Answer:

1.2

Step-by-step explanation:

So in the picture, there is the working out I did (sorry for the bad writing). When you work out the question, remember to match the decimal points (I've done this in the pic). The answer I got was 1.20 but that is the same as 1.2.

hope this helps :)

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Nuetrik [128]

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4 years ago

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point j has coordinate (-2,8) and point r has coordinates (-7,-3. find the coordinate of point A that partition line segment JR

FromTheMoon [43]

So, the point A cuts jr into a 5:2 ratio, where the pieces of jA and Ar are at a 5:2 ratio, thus

$\bf ~~~~~~~~~~~~\textit{internal division of a line segment}
\\\\\\
j(-2,8)\qquad r(-7,-3)\qquad
\qquad \stackrel{\textit{ratio from \underline{j} to \underline{r}}}{5:2}
\\\\\\
\cfrac{j\underline{A}}{\underline{A} r} = \cfrac{5}{2}\implies \cfrac{j}{r} = \cfrac{5}{2}\implies 2j=5r\implies 2(-2,8)=5(-7,-3)\\\\
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$\bf A=\left(\cfrac{\textit{sum of "x" values}}{\textit{sum of ratios}}\quad ,\quad \cfrac{\textit{sum of "y" values}}{\textit{sum of ratios}}\right)\\\\
-------------------------------\\\\
A=\left(\cfrac{(2\cdot -2)+(5\cdot -7)}{5+2}\quad ,\quad \cfrac{(2\cdot 8)+(5\cdot -3)}{5+2}\right)
\\\\\\
A=\left(\cfrac{-4-35}{7}~~,~~\cfrac{16-15}{7} \right)\implies A=\left( -\cfrac{39}{7}~~,~~\cfrac{1}{7} \right)
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4 years ago

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xenn [34]

Answer:

Step-by-step explanation:

Use the pythagorean theorem.

8 0

3 years ago

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Lady bird [3.3K]

The equation of the horizontal ellipse is $\frac{x^2}{144}+\frac{y^2}{100}=1$

Ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant.

The standard form of an ellipse with horizontal major axis is:

$\frac{x^2}{a^2}+\frac{y^2}{b^2}=1$

Where a > b

since a = 12, b = 10, hence:

$\frac{x^2}{12^2}+\frac{y^2}{10^2}=1\\\\\frac{x^2}{144}+\frac{y^2}{100}=1$

The equation of the horizontal ellipse is $\frac{x^2}{144}+\frac{y^2}{100}=1$

Find out more on ellipse at: brainly.com/question/19507943

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3 years ago

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stich3 [128]

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Step-by-step explanation:

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3 years ago

1.26 - 0.06 (2 marks)​

1.26 - 0.06 (2 marks)