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Ad libitum [116K]
3 years ago
15

Given f(x)=x^+7, find x if f(x) = 23

Mathematics
2 answers:
Zielflug [23.3K]3 years ago
3 0

Answer:

Step-by-step explanation:

23=x^2+7

16=x^2

Take the square root of both to get x alone

x=4

klasskru [66]3 years ago
3 0
Hope that might help you to find the right answer!? Let me know

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3 years ago
Separate the x- and y-values with a comma.<br> X=-3+y<br> 26x - 5y = 6
labwork [276]

Answer:

The solution of the given system is (x,y) = (1,4)

Step-by-step explanation:

Here, the given system of equation is:

x  = -3 + y

26 x - 5 y =  6

Now, substitute x  = -3 + y in the second equation , we get

26 x - 5 y =  6  ⇒   26 (-3 + y) - 5 y =  6

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⇒  y = 84 / 21 = 4   or ,   y =  4

So x  = -3 + y  =  -3 + 4 = 1

Hence, the solution of the given system is (x,y) = (1,4)

5 0
3 years ago
Write 0.007 as a fraction.<br> Do not try to simplify your answer.<br> 05<br> 금<br> Х<br> 5<br> ?
balu736 [363]

Answer:

7/1000

Step-by-step explanation:

6 0
2 years ago
How do you decide whether substitution is the best method to solve a system in three variables?
Ivan
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