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Tamiku [17]
3 years ago
7

13-2x=4x+7 I’m being asked how to solve this

Mathematics
2 answers:
natita [175]3 years ago
5 0

Answer:

Step-by-step explanation:

13-2x=4x+7                                                                                                          -2x+13=4x+7                                                                                                       (-2x+13)+(-13-4x)=(4x+7)+(-13-4x)                                                                        -2x+13-4x-13=4x+7-13-4x                                                                                

-2x-4x+13-13=4x-4x+7-13                                                                                                  -6x=-6                                                                                                               6x/6=6/6                                                                                                                 x=1                                                                                                    

mojhsa [17]3 years ago
3 0

Answer:

x= -3.5

Step-by-step explanation:

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Determine the zeroes of the polynomial
Anna71 [15]

Answer:

3,7/6

Step-by-step explanation:

(\sqrt{x^2-4x+3} )+(\sqrt{x^{2} -9} )-(\sqrt{4x^2-14x+6} )\\=(\sqrt{x^2-x-3x+3} )+(\sqrt{(x^2-3^2})-(\sqrt{4x^2-2x-12x+6})\\ =(\sqrt{x(x-1)-3(x-1)} )+\sqrt{(x+3)(x-3)}-\sqrt{2x(2x-1)-6(2x-1)}  \\=\sqrt{(x-1)(x-3)}+\sqrt{(x+3)(x-3)}  -\sqrt{2(2x-1)(x-3)} \\=\sqrt{x-3} (\sqrt{x-1} +\sqrt{x+3} -\sqrt{2(2x-1)} )\\

\sqrt{x-3} =0~gives~x=3\\or~\sqrt{x-1} +\sqrt{x+3} -\sqrt{2(2x-1)} =0\\or~ \sqrt{x-1} +\sqrt{x+3} =\sqrt{2(2x-1)} \\squaring\\x-1+x+3+2\sqrt{x-1} \sqrt{x+3} =2(2x-1)\\2x+2+2\sqrt{(x-1)(x+3)} =4x-2\\2\sqrt{x^2-x+3x-3} =2x-4\\\sqrt{x^2+2x-3} =x-2\\again ~squaring\\x^2+2x-3=x^2-4x+4\\\\2x+4x=4+3\\6x=7\\x=\frac{7}{6}

8 0
3 years ago
Can someone help me with this question please..
lord [1]

Answer:

(0,3)

Step-by-step explanation:

Find the point D and then read the value off of the x axis (horizontal) first and then the y axis (vertical).

3 0
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What is the total cost of buying several shirts at 24.95 each
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8 0
3 years ago
36 and 38<br><br>Steps and explaination please
elena55 [62]

Answer:

36.   Limit = 2/3.

Step-by-step explanation:

36.

(∛ x- 1)  / (√x - 1)

Rationalise the expression:-

Multiply top and bottom by (√x + 1):-

(∛x - 1)(√x + 1) /  (√x - 1)(√x + 1)

=  x^5/6  + ∛x - √x - 1 /  (x - 1)

Applying L'hopital's rule ( differentiating top and bottom of the fraction) we have:

Limit as x ----> 1 of  [5/6 x^-1/6 + 1/3 x^(-2/3)  - 1/2x^-1/2] / 1

= 5/6(1) + 1/3(1) - 1/2(1)  =  2/3  (answer).



8 0
3 years ago
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g100num [7]
I think the answer would be B
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