Ascience teacher keeps a bag of dice all the same size for class room activities. of the 15 dice, 4 are red, 5 are black, 2 are blue, and 4 are green. what is the possibility of the dice not being black

The question is pretty vague, but I think I know what you are asking.

Step-by-step explanation:

The question states clearly the amount of dice picked that is not black.

Therefore, the equation is as so:

Total amount of dice - Total amount that is black

/

Total amount of dice

Or

10 non-black dice/

15 total dice

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.

165.75 years

p.s. this question was already   asked on/p>

step-by-step explanation: