Answer:

Step-by-step explanation:

Set up equation
Step 1: Simplify

Step 2:Multiply by conjugate

Step 3:Simplify

We can reduce this and we must make the imaginary number and real number serpate equations.

Reduce each by 2

30% converted to a decimal is 0.30
310 x 0.3 = 93 students play an instrument
The first letter can be any of 26.
The second letter can be any of the remaining 25.
The third letter can be any of the remaining 24.
26*25*24 = 15,600 passwords are possible

192π is about 603.19 cm³.
well, it means if you grab a hmmmm cube, say that is 1cm x 1cm x 1cm, namely a 1cm tall, 1cm wide and 1cm long, whose value is 1cm³, you can fit 603.19 of those in that cylinder.