Points a and b are midpoints of the sides of triangle qrs. triangle q r s is cut by line segment a b. point a is the midpoint of side q s and point b is the midpoint of side r s. the length of q r is 6 meters, the length of q a is 4 meters, the length of a b is 3 meters, and the length of r b is 3 meters. what is sa?

4 meters

Step-by-step explanation:

Consider triangle QRS. In this triangle, point A is the midpoint of side QS and point B is the midpoint of side RS.

If point A is the midpoint of QS, then by the definition of midpoint,

Since QA is 4 meters long, then AS is 4 meters long too.

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%