Question

the possible of ons'e digit of the square of 676 is
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Answer 1

Answer:

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Step-by-step explanation:

Either 4 or 6.

Note:

[1] The square of largest 1 digit number being 81 and the square of smallest 3 digit number being 10000, the square root of 676 has to be a 2 digit number.

let the two digits of the square root be expressed as 10 x+ y ,

(10x+y)^2= 100x^2 +20xy +y^2

The contribution to the unit digit comes only from y^2,

y has to be 4 or 6

[2] The above arguments hold for a number with any number of digits.

Answer 2

When thyroid hormone levels are low (hypothyroidism), your body doesn't break down and remove LDL cholesterol as efficiently as usual. LDL cholesterol can then build up in your blood. Thyroid hormone levels don't have to be very low to increase cholesterol.