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3 years ago

(6(1) = -5 1) Find (4) in the sequence given by (6(n) = b(n − 1) +9

Mathematics

2 answers:

Sloan [31]3 years ago

8 0

Answer:

f(4) = 22

Step-by-step explanation:

I think that you type wrongly.

we have f(1) = -5

and f(n) = f(n-1) + 9

Find f(4)

Then

with n= 2 we have f(2) = f(1) + 9 = - 5+ 9= 4

with n= 3 we have f(3) = f(2) + 9 = 4 + 9= 13

and finally with n= 4 we find f(4) = f(3) + 9 = 13+ 9= 22

So f(4) = 22

Hope you understand.

Furkat [3]3 years ago

6 0

F 4 = 44

Cuz I said so

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Answer:

Sam is 12, sam's brother is 19, and sam's mom is 32.

Step-by-step explanation:

First the equation you need to use is S+7+S+3S-4=63(the variable s represents Sam), you combine the like terms which then equals 5S+3=63, then you use inverse operations. Subtract 3 on both sides, 5S=60, then you divide on both sides which equals S equals 12. Then you just plug in the number, S is Sam which means Sam's 12. Then 12+7 which is 19, Sam's brother. Then 3 times 12 minus 4 is 32. And if you check to make sure, 12+19+32 does equal 63.

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Erika's Equation
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Irene's Equation
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Solve for one variable in equation one and substitute it in the other equation.

3c + 1g= 21
subtract 3c from both sides
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Substitute g=21 - 3c in equation
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