Which of these numbers is conposite? 4,7,23,29,41

The composite is  4 .

I hope this helps and please mark as branilyest I need 4 more to level up in rank.

Turtle14526

The answer is 9 units

Step-by-step explanation: What we have in the question is a right angled triangle. The hypotenuse (41 units) has been given as well as one of the other two sides (40 units).

The Pythagoras theorem states that;

AC^2 = AB^2 + BC^2

Where AC is the hypotenuse and AB and BC are the other two sides. We now have

41^2 = 40^2 + BC^2

1681 = 1600 - BC^2

Subtract 1600 from both sides of the equation

81 = BC^2

Add the square root sign to both sides of the equation

9 = BC

Therefore the exact length of the third side is 9 units