USE ARITHMETIC OR GEOMETRIC SEQUENCE TO SOLVE. Lisa wants to get a new phone. An iPhone 12 is $800 while an iPhone 8 is $600. If the iPhone 12's price goes down by 10% each year and the iPhone 6's goes down by 5% each year, Which phone would be the cheapest for Lisa to get after three years?

iPhone 12

The iphone 8

Step-by-step explanation:

To find the nth term of a geometric sequence we have the following equation

ar^(n-1)

where a is the first term

r the is the common ratio

n is the term

we can see that the first term for the iphone 12 is 800, the common ratio is .9 (1-.1), and we need the third term

Therefore the price of an iphone 12 after 3 years is

800*.9^(3-1)

which is 648

The iphone 8's first ter is 600 and the common ratio is .95 (1-.05)

using the same equation

600*.95^(3-1)

which is 541.5

answer: a) (0,0), (1,1), (2,8), and (3,27).

step-by-step explanation:

0^3=0

1^3=1

2^3=8

3^3=27

in effect, the exponential equation for this would me y=3^x. each x-coordinate cubed is giving the y coordinate, so a is your answer : )

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.