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serg [7]
2 years ago
13

Abigail is redecorating a master bathroom. The legend on the blueprint shows at 3 cm equals 9 m. What is the scale factor?

Mathematics
1 answer:
zaharov [31]2 years ago
3 0
300:1. A meter is 100 cm, so 9 meters is 900 cm / 3 = 300.
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IF NR = 8 ft, what is the length of arc NMP. Round to the nearest tenth.
Pavlova-9 [17]

Check the picture below.

since chords NQ and MP cross the center of the circle at R, that means that those two chords are diametrical chords and the angles made by both are vertical angles and thus twin angles, namely both are 18° as you see in the picture, so the angle NMP in magenta is really 162° + 18° + 18° = 198°, and we know the radius NR is 8.

\textit{arc's length}\\\\ s=\cfrac{r\pi \theta }{180}~~ \begin{cases} r=radius\\ \theta =\stackrel{degrees}{angle}\\[-0.5em] \hrulefill\\ r=8\\ \theta =198 \end{cases}\implies s=\cfrac{(8)\pi (198)}{180}\implies s\approx 27.6

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Somebody help me solve;
Nadya [2.5K]
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1 year ago
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hram777 [196]

Answer:

x=5

Step-by-step explanation:

x+2x=15

Combine like terms:

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Divide both sides by 3:

x=15/3=5

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3 years ago
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