Ignore answer its was a guess

0.375

Solution given:

For 1st box.

probability of not getting blue is:2/4=1/2

For second box

probability of not getting blue is:1/4

total probability=½*¼=0.375

0.375

Step-by-step explanation:

The left bag has 2 blue marbles and 2 not blue marbles

The chance of drawing a not blue marble is 2/4 = 0.50

The right bag has 1 blue marble and 3 not blue marbles

The chance of drawing a not blue marble is 3/4 or 0.75

Drawing one marble from each bag results in a probability of

0.50(0.75) = 0.375 of getting no blue marbles at all.

1. 180°. the sum of the interior angles of a triangle is 180°, for the equilateral triangle that it has three equals side is 60°+60°+60°=180°.

2. 60°. each interior angle of a equilateral triangle is 60°

3. 120°. the measure of ∠m is 120°, the sum of the angles ∠m and ∠n is equal to 180°. so, in order to find the measure of ∠m, we have ∠m+∠n=180° > ∠m=180°-∠n > ∠m=180°-60°=120°.

4. 360°. the sum of the exterior angles of an equilateral triangle is ∠m+∠r+∠x=120°+120°+120°=360°. the exterior angles of any triangle always add 360°.