4 years ago

4+8+12+... + 4n=2n(n+1)

1 answer:

4 0

4 + 8 + 12 + 4n = 2n(n + 1)
 24 + 4n = 2n(n) + 2n(1)
 24 + 4n = 2n² + 2n
 -2n -2n
 24 = 2n²
 24 = 2n²
 2 2
 12 = n²
 √12 = n
 √4 × 3 = n
 √4 √3 = n
 2 √3 = n

You might be interested in

Can you make this into a word problem! thank you!

notsponge [240]

Answer:

you need to simplify it then you can say that he had marbles and then lost __ then got ___

4 0

3 years ago

A toy box has a volume of 3 cubic yards. what is the volume of this toy box in cubic feet? 1 yard = 27 cubic feet

ollegr [7]

The correct answer is 81 cubic feet

8 0

3 years ago

An archaeologist is categorizing the artifacts he has discovered. Two-thirds of the artifacts are shards of pottery. One-eighth

Reika [66]

Answer:

Personal items=15

Step-by-step explanation:

We are given:

Total number of artifacts = 72.

We are told that 2/3 of total artifacts are shards of pottery.

$\text{Shards of pottery}=72*\frac{2}{3} =24*2=48$

We are also told that 1/8 of total artifacts are tools.

$\text{Tools}=72*\frac{1}{8}=9$

Now we will find out number of personal items by subtracting combined number of shards of pottery and tools from total number of artifacts.

$\text{ Personal items}=72-(48+9)$

$\text{ Personal items}=72-57=15$

Therefore, there are 15 personal items.

8 0

4 years ago

Given that D is he midpoint of AB and K is the midpoint of BC, which statement must be true?

Reil [10]

I can't understand your question do you have any number there?

3 0

3 years ago

How can you use a ratio table to identify patterns and find equivalent Ratios?

tamaranim1 [39]

By analyzing the data

8 0

3 years ago

Read 2 more answers