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Aleks [24]
4 years ago
13

What does X equal in the equation 4/3x + 5/4 = 3/x

Mathematics
1 answer:
Mice21 [21]4 years ago
6 0

I hope this is the correct form of the equation that you are trying to write:

\frac{4}{3x} +\frac{5}{4} =\frac{3}{x}

First step to solve this equation, multiply each sides with the common denominator 12x so that we can get rid of fraction form. So,

\frac{4}{3x}*(12x) +\frac{5}{4}*(12x) =\frac{3}{x}*(12x)

Next step is to cancel out the common factor from both numerator and denominator of each fractions.

4(4) + 5(3x) = 3(12)

16 + 15x = 36

16 + 15x - 16 = 36 - 16 Subtract 16 from each sides.

15x = 20

\frac{15x}{15} =\frac{20}{15} Divide each sides by 15 to isolate x.

x = \frac{4}{3}

So, x = \frac{4}{3}

"Hope this helps!!"

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3. For the polynomial g(x) = x^4 - 8x^3 + 23^2 - 26x + 10, you are told that the zeros include x=1, x = -3 + i, and x = 3+i.
saveliy_v [14]

Step-by-step explanation:

If the polynomial has complex roots, the conjugates of those complex roots must also be part of the zeroes.

Therefore x = -3 - i and x = 3 - i are also zeroes of g(x). However this means that g(x) has 5 solutions when the degree of g(x) is 4. This is impossible, and hence the list is incorrect.

If either of the complex roots (x = -3 + i or x = 3 + i) had a multiplicity of 2, their conjugates will also have a multiplicity of 2, which is impossible as discussed previously.

Therefore x = 1 has a multiplicity of 2.

We have

x⁴ - 8x³ + 23x² - 26x + 10 = (x - 1)²(Ax² + Bx + C).

= (x² - 2x + 1)(Ax² + Bx + C)

= Ax⁴ + (B - 2A)x³ + (A + C - 2B)x² + (B - 2C)x + C

By Comparing Coefficients,

A = 1,

B - 2A = -8,

A + C - 2B = 23,

B - 2C = -26,

C = 10

Solving them we get A = 1, B = -6 and C = 10.

Hence x⁴ - 8x³ + 23x² - 26x + 10

= (x - 1)²(x² - 6x + 10).

Using the Quadratic Formula on x² - 6x + 10,

we find that the correct complex roots are

x = 3 + i and x = 3 - i.

Hence,

the zeroes of g(x) are x = 1, x = 3 + i and x = 3 - i.

8 0
3 years ago
With a tailwind , a helicopter flies 300 miles in 1.5 hours. when the helicopter flies back against the same wind the trip takes
Firlakuza [10]

Answer:

i think its 150


3 0
3 years ago
I’m testing to see who can get the fastest answer シ !! I will mark you the brainliest answer, give you 10pts and a 5 star rating
Reika [66]

Answer:24

Step-by-step explanation:

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Your team wins 18 medals at a competition. There are gold, silver, and bronze the ratio is 2:4:3. How many of each medal did you
schepotkina [342]

Answer:

4 gold 8 silver 6 bronze

Step-by-step explanation:

because ratio is 2:4:3 total is 9 in ratio I just double that to get 18

so 4 gold 8 silver 6 bronze

4 0
3 years ago
On a coordinate plane, how are the locations of the points (9, -4) and (-9, 4) related?
almond37 [142]

Answer:

They are the rotated 180 degrees.

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