Two number cubes are rolled 3 times in a row. what is the probability of rolling a sum of 9 all three times?

1/216 or 1:216 or about .5%

Step-by-step explanation:

Each roll has a 1/6th chance of being a nine. Roll the dice three times, and you get

1/6 × 1/6 × 1/6

simplify it down to

1/36 × 1/6

solve to get the answer of

1/216

60

step-by-step explanation:

every triangle measures a total of 120 degrees. you have to find angle c. we know that isosceles triangles angles are equal. 60 degrees plus 60 degrees gives you 120.

step-by-step explanation: given equation a = h(b 1+b 2)

also we are given values of a, h and b 1 as :

a = 16, h = 4, and b 1 = 3.

in order to solve it for b 2, we need to plug the given values of   a, h and b 1 .

therefore, plugging values of   a, h and b 1   in given equation, we get

16 = 4( 3 + b 2)

first dividing both sides by 4, we get

4 = 3 + b 2

subtracting 3 from both sides, we get

4 -3 = 3 -3 + b 2

1 = b 2.