T Tardy– Student tardy for less than 30 minute with no valid excuse. W See Unexcused Absences (above). Z Excused Tardy– Student tardy to class but with an acceptable explanation, i.e. doctor/dentist.
<span><span>x=<span><span>−4</span>+<span><span><span><span><span>√21</span></span> or </span></span>x</span></span></span>=<span><span>−4</span>−<span>√<span>21</span></span></span></span>
Probability(both marbles are red) = 5/12 * 4/11 = 20/132
= 5/33 Answer
Answer: 
Step-by-step explanation:
In order to solve this exercise it is important to remember the multiplication of signs. Notice that:

In this case you have the following expression given in the exercise:

Where the variable is "j".
When you multiply signs, you get:

Now you need to identify that like terms and then you need to add them (or combine them). So, applying this procedure you get that the simplified form of the expression is the shown below:

As you can observe, you get a 2nd degree binomial.