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Vedmedyk [2.9K]
3 years ago
5

If the sixth term of a sequence is 128 and the common ratio is 2, then what is the first term?

Mathematics
1 answer:
Dimas [21]3 years ago
8 0
128÷6 = 21.3
21.3×2= 42.6
42.6 is the answer
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PLEASE HELP!!20 pts question
Molodets [167]

value of x is x=2, x=-2 and x=0

Step-by-step explanation:

Let a = x^2+4. Use a to find the solution for the following equation:

(x^2+4)^2+32=12x^2+48

Solving

(x^2+4)^2+32=12x^2+48

Taking 12 common from LHS

(x^2+4)^2+32=12(x^2+4)

Let a=x^2+4

(a)^2+32=12(a)\\a^2+32=12a\\a^2-12a+32=0

Factoring the equation

a^2-8a-4a+32=0\\a(a-8)-4(a-8)=0\\(a-8)(a-4)=0\\a-8=0\,\,and\,\,a-4=0\\a=8\,\,and\,\,a=4\\

Putting value of a i.e x^2+4

x^2+4=8\,\,and\,\,x^2+4=4\\x^2=8-4\,\,and\,\,x^2=4-4\\x^2=4\,\,and\,\,x^2=0\\Taking\,\,square\,\,root\,\,at:\\x=\pm 2\,\,and\,\,x=0\\

So, value of x is x=2, x=-2 and x=0

Keywords: Solving Equations

Learn more about Solving Equations at:

  • brainly.com/question/1563227
  • brainly.com/question/2403985
  • brainly.com/question/11229113

#learnwithBrainly

8 0
3 years ago
What’s is the result ?
nadezda [96]

Answer:

19

Step-by-step explanation:

• Shoes + Shoes + Shoes = 30

So, 1 Shoes = 10

• Man + Man + Shoes = 20

1 shoes = 10

20 - 10 = 10

2 man = 10

1 man = 10 ÷ 2 = 5

So, 1 man = 5

• x + x + Man = 13

(Idk what is that)

1 man = 5

13 - 5 = 8

2 x = 8

1 x = 8 ÷ 2 = 4

So, 1 x = 4

(Im seriously. Idk what is that (x))

We can conclude from that picture :

• Shoes + Shoes + Shoes

= 10 + 10 + 10

= 30

• Man + Man + Shoes

= 5 + 5 + 10

= 20

• x + x + Man

= 4 + 4 + 5

= 13

So, what if Shoes + Man + x = ...?

Shoes + Man + x

= 10 + 5 + 4

= <u>1</u><u>9</u>

So, the answer is 19

<em>Hope it helps and is useful</em><em> </em><em>:</em><em>)</em>

3 0
3 years ago
Will give brainliest plz helpp!!!
Sati [7]

Answer:

The answer too your question is C. to your first part

To the second part D. is one of the answers so is E.,

Step-by-step explanation:

It is C. because there are three ones, one 4, one 3, and  one 2. that is the explanation too the first part.

5 0
3 years ago
TÜRKLER KALDIRIRN ELLERİ
Blizzard [7]

Answer:

No, i cant

Step-by-step explanation:

3 0
3 years ago
Jonny
Firlakuza [10]

Answer:

6 11/12

Step-by-step explanation:

7 - 1/12

=

6 11/12

3 0
3 years ago
Read 2 more answers
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