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iren [92.7K]
2 years ago
9

- 2x2 - 4x b) Factorise

Mathematics
1 answer:
natta225 [31]2 years ago
5 0
The answer is 2x X (x-2)
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Determine whether f(x) = 5x+1/x and g(x)= x/ 5x+1 are inverse functions explain how you know. please explain in steps or worded
Len [333]

Hello from MrBillDoesMath!

Answer:

No


Discussion:

If the functions are inverses, then f(g(x)) = x  for appropriate x. Consider x = 1.

g(1) = 1/ (5(1) + 1) = 1/6

f(g(1)) = f (1/6) =  5(1/6) + 1/ (1/6) = 5/6 + 6 = 6 5/6   <> 1

Conclusion: f(g(1)) <> 1 so the functions are not inverses


Thank you,

MrB

7 0
3 years ago
Ms. Romero asks the student to genefractionrate an equivalent fraction. for 6/10.Gwen says 3/5 is an equivalent fraction while d
Phoenix [80]
Gwen is right 3\5 is equivalent to 6\10
if you divide 6\10 by 2 you will get 3\5
7 0
3 years ago
Select all ratios equivalent to <br> 22:10.<br><br> 11:5<br> 110:50<br> 33:15
saveliy_v [14]

Answer:

All the 3 choices are correct.

Step-by-step explanation:

11:5   11 divided by 22 is 1/2  and 5/10 is 1/2

110/50   110 divided by 22 is 5 and 50 divided by 10 is 5

33/15     33 divided by 22 is 1 1/2 and 15 divided by 10 is 1 1/2

5 0
3 years ago
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In the diagram below, triangle ABC is drawn with altitude BD. If AD = 30 and AC = 36, determine the length of AB rounded to the
denis-greek [22]

9514 1404 393

Answer:

  32.9

Step-by-step explanation:

The ratio of long side to hypotenuse is the same for all of the triangles in the figure.

  AD/AB = AB/AC

  AB^2 = AD·AC = 30·36

  AB = 6√30 ≈ 32.863

To the nearest tenth, AB ≈ 32.9.

5 0
3 years ago
Mike, Luke, and Alex each own a white hat marked with the first letter of their name. Winter owns a plain red hat, which is not
Karo-lina-s [1.5K]

Answer:switch mikes Luke’s and Alex in between each other and let winter keep her own

Step-by-step explanation:

7 0
2 years ago
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