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Mathematics

1 answer:

garik1379 [7]3 years ago

3 0

250-75+ 175 the swim club can reserve 175 rooms

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A polyhedron with 16 edges cannot be a prism. Explain why this must be true

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

Counting each box until you get to C gives you 23 and 16 from points A and B

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Y is directly proportional to square root of x<br> If y=56 when x=49 find,<br> y when x=81

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$\qquad \qquad \textit{direct proportional variation} \\\\ \textit{\underline{y} varies directly with \underline{x}}\qquad \qquad \stackrel{\textit{constant of variation}}{y=\stackrel{\downarrow }{k}x~\hfill } \\\\ \textit{\underline{x} varies directly with }\underline{z^5}\qquad \qquad \stackrel{\textit{constant of variation}}{x=\stackrel{\downarrow }{k}z^5~\hfill } \\\\[-0.35em] \rule{34em}{0.25pt}$

$\stackrel{\begin{array}{llll} \textit{"y" directly}\\ \textit{proportional to }\sqrt{x} \end{array}}{y = k\sqrt{x}}\qquad \textit{we know that} \begin{cases} y = 56\\ x = 49 \end{cases}\implies 56=k\sqrt{49} \\\\\\ 56=7k\implies \cfrac{56}{7}=k\implies 8=k~\hfill \boxed{y=8\sqrt{x}} \\\\\\ \textit{when x = 81, what is "y"?}\hfill y=8\sqrt{81}\implies y=8(9)\implies y=72$

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Answer:

D) SSS congruence theorem

Step-by-step explanation:

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