If the side lengths of a triangle are 8, 10, and 13, what kind of triangle is it

It’s a scalene triangle.

Step-by-step explanation: The three main types of triangles known are, EQUILATERAL (all three sides and angles are equal), ISOSCELES (only two sides and two corresponding angles are equal) and SCALENE (none of the sides and none of the angles are equal). Also, note that it’s not a right angled triangle. A right angled triangle would have an hypotenuse whose square is equal to the addition of the square of the other two sides. For a triangle with dimensions 8, 10 and 13 to be right angled, it must be solved by the formula;

13^2 = 10^2 + 8^2

169 = 100 + 64

169 ≠ 164.

So it’s definitely not a right angled triangle. The triangle with side lengths 8, 10 and 13 is a scalene triangle.

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.