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marusya05 [52]
3 years ago
7

When solving this system of equations by elimination, which could be the resulting equation when a variable has been eliminated?

Mathematics
1 answer:
lora16 [44]3 years ago
5 0
I believe your answer should be A. 13x=18
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Help with math plssssss!
Olenka [21]

\dfrac{x\sqrt3}{\sqrt{4x}}=\dfrac{x\sqrt3}{\sqrt4\cdot\sqrt{x}}=\dfrac{x\sqrt3}{2\sqrt{x}}=\dfrac{x\sqrt3\cdot\sqrt{x}}{2\sqrt{x}\cdot\sqrt{x}}=\dfrac{x\sqrt{3x}}{2x}=\dfrac{\sqrt{3x}}{2}\to\boxed{4.}\\\\Used:\\\\\sqrt{ab}=\sqrt{a}\cdot\sqrt{b}\\\\\sqrt{a}\cdot\sqrt{a}=a

6 0
3 years ago
10 points
ollegr [7]

Answer:

FC=25.9

Step-by-step explanation:

<u>Congruent Triangles</u>

The figure shows two triangles FCD and FED. One of their sides is the radius of the circle, they both form a 90° angle with the line CD and ED and they share the same segment FD.

Thus, both triangles are congruent and we have the length of a side (12 units), one common side (the hypotenuse) and one unknown leg that must be equal. Therefore

13x-16=4x+11

Solving

9x=27

x=3

The required side FD is the hypotenuse of any of the triangles. The unknown leg can be calculated by

13x-16=23

Or

4x+11=23

Thus

FD^2=12^2+23^2=673

Solving

FD=\sqrt{673}

\boxed{FC=25.9}

5 0
3 years ago
Which graph represent y = ^3 sqrt x-5
Juliette [100K]

The graph that represents 2+3 is the one that mean go add then multiply it to the equation that the number will be

3 0
3 years ago
PLEASE HELP AND QUICK
3241004551 [841]
I think it is 70 but not sure
8 0
3 years ago
Express 53/6 as a mixed number
Degger [83]

Answer:

Its already simplified, if you were to simplify it even more it would be 8 5/6

4 0
3 years ago
Read 2 more answers
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