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nikitadnepr [17]
3 years ago
15

Converting a decimal to a mixed number and as a improper fraction, please help...

Mathematics
1 answer:
Lilit [14]3 years ago
3 0
The answer to your question:

81/10, 8.1, and 8 1/10
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Choose the equation of the horizontal line that passes through the point (−2, −1)
ohaa [14]

The answer of this problem would be A: Y = -1 because the line needs to be horizontal.

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Is −1
bulgar [2K]

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5 0
3 years ago
Using the Law of Cosines, in triangle DEF, if e=18yd, d=10yd, f=22yd, find measurement of angle D
Ivahew [28]
Check the picture below.

\bf \textit{Law of Cosines}\\ \quad \\
c^2 = {{ a}}^2+{{ b}}^2-(2{{ a}}{{ b}})cos(C)\implies 
c = \sqrt{{{ a}}^2+{{ b}}^2-(2{{ a}}{{ b}})cos(C)}
\\\\\\
\cfrac{{{ a}}^2+{{ b}}^2-c^2}{2{{ a}}{{ b}}}=cos(C)\implies cos^{-1}\left(\cfrac{{{ a}}^2+{{ b}}^2-c^2}{2{{ a}}{{ b}}}\right)=\measuredangle C\\\\
-------------------------------\\\\
\begin{cases}
d=10\\
e=18\\
f=22
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\bf \implies cos^{-1}\left(0.893\overline{93}\right)=\measuredangle D\implies 26.63^o\approx \measuredangle D

7 0
3 years ago
PLEASE HELP!!!!!!!!
Wewaii [24]

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5 0
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