If you flip 3 fair coins what is the probability that you’ll get all three tails

1/8

Step-by-step explanation:

The possibilty of getting tails in one flip is 1/2, and there are three events, so that's 1/2 three times. To find the probability of multiple independent events occurring, you would multiply them together, so in this case you would do: 1/2 * 1/2 * 1/2 which equals 1/8.

a4 - 3a2 - 1

step-by-step explanation:

step   1   :

equation at the end of step   1   :

  ((a4) -   3a2) -   1

step   2   :

trying to factor by splitting the middle term

2.1     factoring   a4-3a2-1  

the first term is,   a4   its coefficient is   1 .

the middle term is,   -3a2   its coefficient is   -3 .

the last term, "the constant", is   -1  

option: d is correct

step-by-step explanation: