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Gelneren [198K]
3 years ago
12

Please help if you can

Mathematics
1 answer:
schepotkina [342]3 years ago
4 0


Step-by-step explanation:

sqrt of 81 is 9 so rational

Sqrt of 89 is irrational

Sqrt of 121 is 11 so rational

Sqrt of 131 is irrational.

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Answer:

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wel

Answer:

z=\frac{15\sqrt{3}}{2}

Step-by-step explanation:

In leftmost triangle:

opposite side =y

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tan(60)=\frac{y}{a}

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In rightmost triangle:

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