1. if the sequence below is a geometric sequence,
welow is a geometric sequence, find the common ratio.
3/4,3/16,3/64,3/256,3/1024

4

Step-by-step explanation:

Look at the denominator. It is multiplying by a number each time (because it is geometric and not linear)

Divide any two consecutive denominators to find the common ratio. For example, divide 16 and 4.

16/4 = 4

This works with any two consecutive numbers. Try 256 and 64

256/64 = 4

(Note: Divide with the bigger number on top)

No matter what consecutive denominators you pick you will always get the same number. That's why its called the common ratio. Since you always get 4 with these numbers that means that 4 is the common ratio.

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.

the solution is the point

step-by-step explanation:

we have

> equation a

> equation b

adds equation a and equation b

substitute the value of x in equation b to find the value of y

the solution is the point