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Mariana [72]
3 years ago
12

Desperate need for help! Maths! Will award brainliest!

Mathematics
1 answer:
stealth61 [152]3 years ago
4 0

Step-by-step explanation:

fg(x) =

{(x - 4)}^{2}  + 3(x - 4)

=

{x}^{2}  + 16 - 8x + 3x - 12

=

{x}^{2}  - 5x + 4

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Solution to 3/x + 2/(x+1) = 3/5x?
s2008m [1.1K]

9514 1404 393

Answer:

  x = -6/11

Step-by-step explanation:

We assume you want the solution to ...

  3/x +2/(x+1) = 3/(5x)

Subtracting the term on the right, we get the form f(x) = 0.

  \displaystyle\frac{3}{x}+\frac{2}{x+1}-\frac{3}{5x}=0\\\\\frac{15-3}{5x}+\frac{2}{x+1}=0\\\\\frac{12(x+1)+10x}{5x(x+1)}=0\\\\22x+12=0\quad\text{numerator must be zero}\\\\x+\frac{6}{11}=0\quad\text{divide by 22, simplify}\\\\\boxed{x=-\frac{6}{11}}

_____

If you really intend 3/x +2/(x+1) = (3/5)x as you have written, the solution is 3 irrational values for x. I find a graphing calculator a convenient way to find them.

8 0
3 years ago
Ages Number of students 15-18 6 19-22 4 23-26 5 27-30 7 31-34 10 35-38 9 Based on the frequency distribution above, find the rel
dolphi86 [110]

Answer:

9.8%

Step-by-step explanation:

Given the following information

\left|\begin{array}{c|cccccc}Ages &15-18&19-22&23-26&27-30&31-34&35-38\\$Number of students&6&4&5&7&10&9\end{array}\right|

Total Number of Students =6+4+5+7+10+9=41

Number of Students aged 19-22 =4

Therefore:

The relative frequency for the class with a lower class limit of 19

=\dfrac{4}{41}\times 100\\\\ =9.8\% $(to one decimal place)

8 0
3 years ago
12x=11x+6<br> How do I solve this, it’s proving lines parallel
Alex
It would be helpful to see a picture, but if you are just trying to solve for X. The answer would be 6.
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inessss [21]

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Step-by-step explanation:

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3 years ago
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Nikolay [14]

Answer:

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Step-by-step explanation:

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