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Nesterboy [21]
2 years ago
10

Which of the following expressions results in a positive number? Select 3 that apply.

Mathematics
1 answer:
Slav-nsk [51]2 years ago
7 0

9514 1404 393

Answer:

  B, C, D

Step-by-step explanation:

A product with an even number of minus signs will be positive.

  A. (-6)(-3)(-2) = -36

  B. (-4)(-4) = 16 . . . . . positive

  C. (-3)(-8) = 24 . . . . positive

  D. (6)(2) = 12 . . . . . . positive

  E. (-3)(4) = -12

_____

Your calculator can help with this.

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A rectangle has an area of 20 ft.² in a similar rectangle has an area of 180 ft.² what is the ratio of areas of the similar
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\bf \qquad \qquad \textit{ratio relations}
\\\\
\begin{array}{cccllll}
&Sides&Area&Volume\\
&-----&-----&-----\\
\cfrac{\textit{similar shape}}{\textit{similar shape}}&\cfrac{s}{s}&\cfrac{s^2}{s^2}&\cfrac{s^3}{s^3}
\end{array}\\\\
-----------------------------\\\\

\bf \cfrac{\textit{similar shape}}{\textit{similar shape}}\qquad \cfrac{s^2}{s^2}=\cfrac{20}{180}\implies \left( \cfrac{s}{s} \right)^2=\cfrac{20}{180}\implies \cfrac{s}{s}=\sqrt{\cfrac{20}{180}}
\\\\\\
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Need help with these questions
pochemuha

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