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3 years ago

Someone help me please!

Mathematics

1 answer:

malfutka [58]3 years ago

5 0

Remember, all inside angles in a triangle add up to 180°

So:

3x+5x+7+x+2=180

Combine like terms

9x+9=180

Subtract 9 from both sides

180-9=171

9x=171

Divide by 9 on both sides

171/9=19

x=19

Plug it into all the angle measures.

Angle X: x+2, 9+2=11, Angle X=11°

Angle Y: 5x+7, 5(9)+7=52, Angle Y=52°

Angle Z: 3x, 3(9)=27, Angle Z=27°

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Answer:

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Step-by-step explanation:

let's look at it in this concept.

For a number to be divisible by 11 and 5. it must be a multiple of the LCM of 11 and 5.

LCM of 11 and 5=55

therefore the number is 55x, where x is a positive integer.

it is a said that the number is a perfect square

therefore the square root of 55x must be an integer.

$\sqrt{55x} = \sqrt{5 \times 11 \times x}$

the smallest value of x to make 55x a perfect square is....

$x = 11 \times 5 = 55$

Therefore the number is.... .

$55x = 55(55) = 3025$

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