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sergey [27]
3 years ago
12

A painting measures 15 cm long by 24 cm high. You buy two posters, each showing an enlargement of the painting. The first poster

measures 45 cm long by 72 cm high. The second poster measures 97.5 cm long by 156 cm high. Which of the following is true? (Hint: To be an accuarate representation of the painting, would the the poster be similar to the painting?)
Mathematics
1 answer:
Airida [17]3 years ago
5 0

Answer:

The Answer Is C The fist poster is the proper representation, because find the areas compare the paintings to the first poster it is 360 to 3240 which shows the poster is 9x bigger but compared to the second one it is out of proportion for the painting and first poster

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What is the slope of a line perpendicular to the line whose equation is 5x - y = -7.
BARSIC [14]

keeping in mind that perpendicular lines have negative reciprocal slopes, let's check for the slope of the equation above

5x-y=-7\implies 5x-y+7=0 \\\\\\ \stackrel{\stackrel{m}{\downarrow }}{5} x+7=y\qquad \impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}

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\stackrel{~\hspace{5em}\textit{perpendicular lines have \underline{negative reciprocal} slopes}~\hspace{5em}} {\stackrel{slope}{5\implies \cfrac{5}{1}} ~\hfill \stackrel{reciprocal}{\cfrac{1}{5}} ~\hfill \stackrel{negative~reciprocal}{-\cfrac{1}{5}}}

3 0
2 years ago
Someone answer this i will give you the brainlist
Viktor [21]
21%, .262, 26.8%, 2 and 2/5
7 0
3 years ago
How can you know if this equation is true?<br><br> 12+38=410=25
Aleonysh [2.5K]

Answer: that’s literally not even a valid equation. It literally Basically says 410 Is equal to 25. When is incredibly false

Step-by-step explanation:

7 0
3 years ago
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