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exis [7]
4 years ago
9

Can someone help me solving this equation for x please

Mathematics
1 answer:
torisob [31]4 years ago
6 0

Answer:

  ±2/11

Step-by-step explanation:

Take the square root of both sides of the equation:

  \sqrt{x^2}=\sqrt{\dfrac{4}{121}}\\\\\boxed{x=\pm\dfrac{2}{11}}

_____

Here, we need to recognize that (-2/11)^2 = (2/11)^2 = 4/121, so both the positive and negative roots of 4/121 are solutions to the equation.

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Which translation maps the vertex of the graph of the function f(x) = x2 onto the vertex of the function g(x) = x2 + 2x +1?
raketka [301]
While the vertex of the function f(x) = x^2 is (0, 0), the vertex of the function g(x) = x^2 + 2x + 1 is (-1, 0).
Whereas both function has same y-cordinate, their x-coordinate are different which indicates that the function g(x) = x^2 + 2x + 1 is a horizontal translation of the function f(x) = x^2.
4 0
3 years ago
Read 2 more answers
rewrite the polynomial 2y^2+ 6y^3-11-17y^4+8y^5 in the standard form also find its degree and coefficient of y^4
OleMash [197]

Answer:

The standard form is  8 y ⁵ - 17 y⁴ + 6 y³ +2 y² - 11

The degree of given polynomial is '5'

the co-efficient of  y⁴  is '-17'

Step-by-step explanation:

Given standard form 2 y²+ 6 y³-11-17 y⁴+8 y⁵

<em>The form ax² + b x + c is called the standard form of the quadratic expression of 'x'.This is second degree standard form of polynomial.</em>

<em>The form ax⁵ + b x⁴ + c x³ +d x² +ex +f  is called the standard form of the quadratic expression of 'x'.This is fifth degree standard form of polynomial</em>

now Given polynomial is  2 y²+ 6 y³-11-17 y⁴+8 y⁵

The standard form is

                                8 y ⁵ - 17 y⁴ + 6 y³ +2 y² - 11

<u><em>Conclusion</em></u>:-

<em>The degree of given polynomial is '5'</em>

<em>The co-efficient of  y⁴  is '-17'</em>

<em>   </em>

5 0
3 years ago
Julio is running a 13.1 mile race there are water stops every 2.75 miles along the route from the beginning of the race. What is
Gemiola [76]
If you divide 13.1 by 2.75 you'll get 4 plus a remainder so we know there are 4 stops at 2.75 intervals. 4*2.75=11. Subtract 11 from 13.1 and the last stretch would be 2.1 miles.
I hope this helped!
5 0
3 years ago
Read 2 more answers
The sum of a number and 20 is no more than the sum of the square of the number and 9.
aniked [119]

A is the correct answer.

break down the word problem.

You also have to recognize key words which figure into mathematical symbols.

ex. sum of a number and 20 is x+20

square of the number and 9 is (x+9)^2

please vote my answer brainliest! thanks.

5 0
3 years ago
One day for plumbers in five helpers earned $350. At the same rate of pay, another group of five plumbers and six helpers earned
schepotkina [342]

Answer: a plumber earns $50 each day and a helper earns $30 each day.

Step-by-step explanation:

Let x represent the amount that a plumber earns in a day.

Let y represent the amount that a helper earns in a day.

One day, four plumbers and five helpers earned $350. This means that

4x + 5y = 350 - - - - - - - - - - -1

At the same rate of pay, another group of five plumbers and six helpers earned $430. This means that

5x + 6y = 430 - - - - - - - - - - - - 2

Multiplying equation 1 by 5 and equation 2 by 4, it becomes

20x + 25y = 1750

20x + 24y = 1720

Subtracting, it becomes

y = 30

Substituting y = 30 into equation 1, it becomes

4x + 5 × 30 = 350

4x + 150 = 350

4x = 350 - 150

4x = 200

x = 200/4 = 50

3 0
4 years ago
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