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alekssr [168]
3 years ago
9

If f(x)=4x-11,what is the value of f(5)

Mathematics
2 answers:
siniylev [52]3 years ago
7 0

Answer:

f(5) = 9

Step-by-step explanation:

f(x) = 4x - 11

f(5) = 4(5) - 11

      = 20 - 11

      = 9  

Vinvika [58]3 years ago
4 0

Answer:

9

Step-by-step explanation:

4*9-11= 36 -11 = 25

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3 years ago
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I need to simplify √(5+2√2) and √(6+2√5)
SIZIF [17.4K]
This expression is easier than it looks like. I thought that to solve it you have for example to express the 2 via 10 * 5^-1 and stuff like that - but you can multiply and divide this expression by some factor. In our case first we multiply by conjunctive expression root(5-2root2) and the second by root(6+2root5). In first we get root16 and the second calculate.
6 0
2 years ago
What does this equal tox= -9
Len [333]
I'm guessing you mean which equation Equals -9

In each equation you are needing to get rid of X so you divide on both sides

A) -45=5x

-45/5=x
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and I double checked to make sure nothing else equaled -9 so Your answer Is A

Hope this helped!
4 0
3 years ago
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