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mariarad [96]
3 years ago
11

Find x when y=-12 if y= 4 when x=5

Mathematics
1 answer:
GalinKa [24]3 years ago
8 0

Answer:  find x when y=-12 if y= 4 when x=5

Step-by-step explanation:

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Which polynomial correctly combines the like terms and puts the given polynomial in standard form? one-thirdx 8x4 – two-thirdsx2
AURORKA [14]

Polynomial equation is a equation which is formed with coefficients variables and exponents with basic mathematics operation and equality sign. From the given option the option C correctly combines the like terms and puts the given polynomial in standard form which is,

8x^4-\dfrac{2}{3}x^2-\dfrac{2x}{3}\\

Hence the option C is the correct option.

<h3>Given information-</h3>

The given polynomial equation in the problem is,

\dfrac{1}{3} x+8x^4-\dfrac{2}{3}x^2-x

<h3>Polynomial equation </h3>

Polynomial equation is a equation which is formed with coefficients variables and exponents with basic mathematics operation and equality sign.

In the above polynomial equation the variable are<em> x </em>and the highest power of the variable <em>x</em> is four.

Arrange the given polynomial equation in the power of the variable <em>x. </em>Thus,

8x^4-\dfrac{2}{3}x^2+\dfrac{1}{3} x-x

Make the group of the same power of the variable <em>x. </em>Therefore,

8x^4-\dfrac{2}{3}x^2+(\dfrac{1}{3} x-x)

8x^4-\dfrac{2}{3}x^2+\dfrac{x-3x}{3}\\

8x^4-\dfrac{2}{3}x^2-\dfrac{2x}{3}\\

From the given option the option C correctly combines the like terms and puts the given polynomial in standard form which is,

8x^4-\dfrac{2}{3}x^2-\dfrac{2x}{3}\\

Hence the option C is the correct option.

Learn more about the polynomial equation  here;

brainly.com/question/25958000

5 0
2 years ago
Carter misses 25% of the free throws he attempts in a season. How many total free
Inga [223]

Answer:

so 25% of 63

63x25:100

15,75=

63+15.75=

78.75=

79 appx

Step-by-step explanation:

4 0
3 years ago
Here is another question 9 hundreds+2000+1<br><br> 0,1,2,9
svp [43]
2901 will be your answer
5 0
3 years ago
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The chart below contains the results of a survey of 25 students who were asked which musical instrument they play best. Instrume
liberstina [14]

Answer:

12%

Step-by-step explanation:

Add each number of students in the graph together. 1 + 6 + 2 + 3 = 12, so it's 12%.

6 0
3 years ago
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Find a factorization of x² + 2x³ + 7x² - 6x + 44, given that<br> −2+i√√7 and 1 - i√/3 are roots.
Levart [38]

A factorization of x^4+2x^3+7x^2-6x+44 is (x^2+4x+11)(x^2-2x+4).

<h3>What are the properties of roots of a polynomial?</h3>
  • The maximum number of roots of a polynomial of degree n is n.
  • For a polynomial with real coefficients, the roots can be real or complex.
  • The complex roots of a polynomial with real coefficients always exist in a pair of conjugate numbers i.e., if a+ib is a root, then a-ib is also a root.

If the roots of the polynomial p(x)=ax^4+bx^3+cx^2+dx+e are r_1,r_2,r_3,r_4, then it can be factorized as p(x)=(x-r_1)(x-r_2)(x-r_3)(x-r_4).

Here, we are to find a factorization of p(x)=x^4+2x^3+7x^2-6x+44. Also, given that -2+i\sqrt{7} and 1-i\sqrt{3} are roots of the polynomial.

Since p(x)=x^4+2x^3+7x^2-6x+44 is a polynomial with real coefficients, so each complex root exists in a pair of conjugates.

Hence, -2-i\sqrt{7} and 1+i\sqrt{3} are also roots of the given polynomial.

Thus, all the four roots of the polynomial p(x)=x^4+2x^3+7x^2-6x+44, are: r_1=-2+i\sqrt{7}, r_2=-2-i\sqrt{7}, r_3=1-i\sqrt{3}, r_4=1+i\sqrt{3}.

So, the polynomial p(x)=x^4+2x^3+7x^2-6x+44 can be factorized as follows:

\{x-(-2+i\sqrt{7})\}\{x-(-2-i\sqrt{7})\}\{x-(1-i\sqrt{3})\}\{x-(1+i\sqrt{3})\}\\=(x+2-i\sqrt{7})(x+2+i\sqrt{7})(x-1+i\sqrt{3})(x-1-i\sqrt{3})\\=\{(x+2)^2+7\}\{(x-1)^2+3\}\hspace{1cm} [\because (a+b)(a-b)=a^2-b^2]\\=(x^2+4x+4+7)(x^2-2x+1+3)\\=(x^2+4x+11)(x^2-2x+4)

Therefore, a factorization of x^4+2x^3+7x^2-6x+44 is (x^2+4x+11)(x^2-2x+4).

To know more about factorization, refer: brainly.com/question/25829061

#SPJ9

3 0
2 years ago
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