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allochka39001 [22]
2 years ago
13

PLEASE HELP Im DESPERATE ASAP FOR BRAINLEST!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
iren [92.7K]2 years ago
7 0

Put 40y and 25.5

Step-by-step explanation:

I js did it lol

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Show that (f o g)(x) = (g o f)(x) = x
cluponka [151]

Answer:

- \frac{2[1 - x]}{3}  = g[f(x)] \\  \\  \frac{3x}{2 - x}  = f[g(x)]

Step-by-step explanation:

They are not.

For the <em>g[f(x)]</em> function, you substitute ³/ₓ ₋ ₁ from the <em>f</em><em>(</em><em>x</em><em>)</em><em> </em>function in for <em>x</em><em> </em>in the <em>g</em><em>(</em><em>x</em><em>)</em><em> </em>function to get this:

\frac{2}{ \frac{3}{x - 1}}

Then, you bring <em>x</em><em> </em><em>-</em><em> </em><em>1</em><em> </em>to the top while changing the expression to its conjugate [same expressions with opposite symbols]:

- \frac{2[1 - x]}{3}

You could also do this [attaching another negative would make that positive].

For the <em>f[g(x)]</em> function, ²/ₓ from the <em>g(x)</em> function for <em>x</em><em> </em>in the <em>f(x)</em> function to get this:

\frac{3}{ \frac{2}{x} - 1}

Now, if you look closely, ²/ₓ is written as 2x⁻¹, and according to the Negative Exponential Rule, you bring the denominator to the numerator while ALTERING THE INTEGER SYMBOL FROM NEGATIVE TO POSITIVE:

\frac{3x}{2 - x}

When this happens, <em>x</em><em> </em>leaves the <em>two</em> and gets attached to the <em>three</em><em>,</em><em> </em>and 1 gets an <em>x</em><em> </em>attached to it.

I am joyous to assist you anytime.

6 0
3 years ago
Solve for y.<br> y - 3x = 1
Marat540 [252]

Answer:

Original equation: y-3x=1

Add 3x to both sides, which would isolate y: y=3x+1

Let me know if this helps!

4 0
3 years ago
Read 2 more answers
PLEASE ANSWER THIS RIGHT ASAP
Anastaziya [24]

Answer:

x=9

Step-by-step explanation:

23=7/9(6x-36)+9

Distribute 7/9.

23=14/3x-28+9

Add.

23=14/3x-19

Add 19 to both sides of the equation.

42=14/3x

Divide 14/3 from both sides of the equation.

X=9

Hope this helps :)

7 0
2 years ago
Read 2 more answers
Someone help me solve this please, I'd appreciate it if you can walk me through the steps. If not, just answering it is okay :)
DiKsa [7]

Answer:

6x

Step-by-step explanation:

I'm pretty sure

7 0
3 years ago
MUST EXPLAIN NOT A STRAIGHT UP ONE ANSWER OR REPORTED
dmitriy555 [2]

Answer:

Step-by-step explanation:

170=40x+50

170=40x+50                              subtract 50

120=40x                                     divide by 40

3=x

6 0
2 years ago
Read 2 more answers
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