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Degger [83]
3 years ago
11

What is the solution set of the equation?

title="\sqrt{x} -18+9x=x" alt="\sqrt{x} -18+9x=x" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
bagirrra123 [75]3 years ago
8 0

9514 1404 393

Answer:

  x ∈ {2.07014981016}

Step-by-step explanation:

The equation can be rewritten as ...

  √x = 18-8x

  x = 324 -288x +64x²

  64x² -289x +324 = 0

  x = (289 ±√577)/128 ≈ {2.07015, 2.44548}

Since √x must be positive, we know that ...

  18 -8x ≥ 0

  x ≤ 18/8 = 2.25

The larger of the above solutions is extraneous, so the solution set is ...

  x ∈ {(289 -√577)/128} ≈ {2.07015}

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The mean weight of 15 members of a company is 58kg. One more member whose weight is 74kg joins the company.Find the new mean wei
zloy xaker [14]

Answer:

59kg

Step-by-step explanation:

58kg * 15 members=870

870+74kg=944

944/16 total people =59kg

5 0
3 years ago
Geometry math question no Guessing
bearhunter [10]
We can first look into the properties of parallelogram,you can also take reference from the figure above:

-Opposite sides are parallel and are congruent.
-Opposite angles are congruent.
-The diagonals bisect each other.

We can then look into the answer:

A.Opposite angles are congurent.
-This is an correct statement.

B.Diagonals are congruent.
-This is incorrect,although they bisect each other,they do not have the same length.

C.The diagonals are peroendicular to each other.
-This is incorrect as well,not every parallelogram has the angle of 90° in the place where the diagonals bisect each others.

D.The area is equal to the product of two adjacent side-this is not true,to find the area,it have to be base×height.

Therefore the answer is A.

Hope it helps!

7 0
4 years ago
Does the answer seem correct?
Law Incorporation [45]
Yea it seems correct
7 0
3 years ago
1. Determine el valor de W en las proporciones siguientes:<br> a) (12/w) = (4/3); w =
8090 [49]

Aplicando multiplicación cruzada, tiene-se que el valor de w es w = 9.

  • Cuando una proporción es dada, con una igualdade de duas proporciones, puede-se aplicar multiplicación cruzada entre ellas.

En este problema, la ecuación que relaciona las proporciones es dada por:

\frac{12}{w} = \frac{4}{3}

Aplicando multiplicación cruzada:

4w = 12(3)

4w = 36

w = \frac{36}{4}

w = 9

El valor de w es w = 9.

Un problema similar es dado en brainly.com/question/24615636

6 0
3 years ago
Write an equation. <br><br>Four more than the product of three and a value x is equal to ninteen​
Step2247 [10]

Answer:

see explanation

Step-by-step explanation:

The product of 3 and x is 3x

Four more than this product is 3x + 4, thus

3x + 4 = 19 ← is the equation

5 0
3 years ago
Read 2 more answers
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