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3 years ago

Please help me!! Iv been stuck!

Mathematics

1 answer:

Sloan [31]3 years ago

7 0

Answer:

$7$

Step-by-step explanation:

Because the leftmost triangle is a 45-45-90 isosceles right triangle, $a = b =\frac{7\sqrt2}{\sqrt2} = 7\\$

The rightmost triangle is a 30-60-90 triangle, and the side lengths are in the proportion $1:\sqrt3:2$ from shortest to longest. Therefore, $c = 7\cdot\frac{\sqrt3}{1} = 7\sqrt{3} \implies \boxed{7}$

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avanturin [10]

Given inequality is:

$4x+8y\leq-8$

Now for (6,-4), Put x=6 nd y=-4 in given inequality:

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So for (6,-4) this inequality is true.

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As -32 is less than -8 then this condition is also true.

simillarly you can check for other options also.

For (-7,5) Put x=-7 and y=5 in given inequality:

$\begin{gathered} 4(-7)+8(5)\leq-8 \\ -28+40\leq-8 \\ 12\leq-8 \end{gathered}$

As 12 is grater than -8 so this condition is false.

And for (-6,0) put x=-6 and y=0 in given inequality:

$\begin{gathered} 4(-6)+8(0)\leq-8 \\ -24\leq-8 \end{gathered}$

As -24 is less than -8 so it is true.

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Step-by-step explanation:

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Answer:

Step-by-step explanation:

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