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Nastasia [14]
3 years ago
11

Solve 5[8-(9x-7)]+6x=0

Mathematics
1 answer:
evablogger [386]3 years ago
3 0
5[8-(9x-7)]+6x=0
5[8-9x+7]+6x=0
5[15-9x]+6x=0
75-45x+6x=0
75-39x=0
x=25/13
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Write the five term sequence that would represent each recursive rule f(x) = f(x-1) -7; f(2) = 12
barxatty [35]

<u>Answer: </u>

Required five terms of sequence are 19 , 12 , 5 , -2 and -9 .

<u> Solution: </u>

Need to find the five terms of the sequence.

Given recursive rule is f(x) = f(x-1) -7

Substituting x = 2 , f(2) = f(2-1)-7

= f(2) = f(1) – 7    ------(1)

Also given that f(2) = 12.  

On substituting the given value of f(2) in eq (1) we get

12 = f(1) – 7

f(1) = 12 + 7 = 19

Using given recursive rule and given value of f(2) calculating f(3)

Substituting x = 3 ,  

f(3) = f(3-1) – 7  

= f(2) – 7  

= 12 – 7  

= 5

Using given recursive rule and calculated  value of f(3) calculating f(4)

Substituting x = 4,  

f(4) = f(4-1) – 7  

= f(3) – 7  

= 5– 7  

= -2

Using given recursive rule and calculated  value of f(4) calculating f(5)

Substituting x = 5,  

f(5) = f(5-1) – 7  

= f(4) – 7  

= -2– 7  

= -9

Hence required five terms of sequence are 19 , 12 , 5 , -2 and -9 .

8 0
3 years ago
Please help I will really appreciate it
Veronika [31]
Hi!
Where’s the question.
8 0
2 years ago
Read 2 more answers
Is x 12 or 15? Or none?
Usimov [2.4K]
The answer is 15 buddy!
7 0
3 years ago
Read 2 more answers
Which correlation coefficient is most appropriate for the scatterplot shown below?
Jlenok [28]
I think it’s 3 not sure tho because i forgot most things about it
7 0
2 years ago
The price of a geometrical box was Rs 400 last year. It has increased by 12% this year. What is the price now?
mestny [16]

Answer:

Rs 448

Step-by-step explanation:

400 × 1.12 = 448

this a 12 % increase

6 0
3 years ago
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