3 years ago

Find the exact value of the eighth term of the geometric sequence: 648,216,72,24

Mathematics

1 answer:

NikAS [45]3 years ago

7 0

8th term is 0.30

Step-by-step explanation:

Step 1: nth term of a GP = a × r^n-1

Step 2: Find r.

⇒ r = a2/a1 = 216/648 = 1/3

Step 3: Calculate 8th term. a = 648, r = 1/3 and n = 8

⇒ 8th term = 648 × (1/3)^8-1 = 648 × (1/3)^7 = 648/2187 = 0.30

You might be interested in

Please explain to me how to do this thank you

brilliants [131]

The answer is 100 sections. You get this by converting 2 meters which will be 200 cm then just divide 200 by 10 and you get 100! Hope this helps sorry if I get it wrong

8 0

3 years ago

Give all possible names for the line shown.

Andreas93 [3]

I believe that the only combinations would be EF and FE.

7 0

3 years ago

Two mixed numbers that have a sum of 3

hram777 [196]

1 1/2 + 1 1/2 & 1 3/4 + 1 1/4

6 0

3 years ago

If the sensor started working 15 minutes into the draining, how much was in the tank to begin with?

UNO [17]

It has to be around 10 cm

3 0

3 years ago

Please help mei really need this here is the picture

ANTONII [103]

Answer:

The length is 7.2 feet.

Step-by-step explanation:

It is a ratio of 10:18. Therefore you can simplify the ratio to 18/10 or 1.8. This then becomes 4 (width) times 1.8, or 7.2 feet. :)

8 0

3 years ago