What times what equels -54?

Mathematics

1 answer:

Nastasia [14]3 years ago

5 0

1,54 3,8 6,9
multiply the pairs of numbers

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Please help! Consider the given circle with the shaded sector xy and central angle 225. The circumference is 30 units

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$\textit{arc's length}\\\\ s = \cfrac{\theta \pi r}{180}~~ \begin{cases} r=radius\\ \theta =\stackrel{degrees}{angle}\\[-0.5em] \hrulefill\\ r=15\\ \theta =225 \end{cases}\implies \widehat{XY}=\cfrac{(225)\pi (15)}{180}\implies \boxed{\widehat{XY}\approx 58.90} \\\\[-0.35em] ~\dotfill\\\\ \textit{area of a circle}\\\\ A=\pi r^2\qquad \qquad A=\pi (15)^2\implies A=225\pi \implies \boxed{A\approx 706.86}$

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Answer:

Step-by-step explanation:

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