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4 years ago

Which system of equations can be used to find the roots of the equation 12x3-5x=2x2+x+6

Mathematics

2 answers:

Marizza181 [45]4 years ago

7 0

Same=same figure out what the x is both x are the same number on both side is the same answer hope that helps

seraphim [82]4 years ago

7 0

$y=12x^{3}-5x$ -----> equation A

$y=2x^{2} +x+6$ ------> equation B

we have

$12x^{3}-5x=2x^{2} +x+6$

This equation can be rewritten in the following system of equations

$y=12x^{3}-5x$ -----> equation A

$y=2x^{2} +x+6$ ------> equation B

we know that

The solution of the system of equations is the intersection point both graphs

using a graphing tool

see the attached figure

The solution is

$x=1.07$

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3 years ago

Use the augmented matrix to determine if the linear system is consistent. Is the linear system represented by the augmented matr

Crazy boy [7]

Answer:

The correct option is (A).

Step-by-step explanation:

If the reduced row echelon form of the coefficient matrix of a linear system of equations in four different variables has a pivot, i.e. 1, in each column, then the reduced row echelon form of the coefficient matrix is say A is an identity matrix, here I₄, since there are 4 variables.

$\left[\begin{array}{cccc}1&0&0&0\\0&1&0&0\\0&0&1&0\\0&0&0&1\end{array}\right]$

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Now the given linear system is consistent as the right most column of the augmented matrix is a linear combination of the columns of A as the reduced row echelon form of A has a pivot in each column.

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3 years ago

The point slope form of the equation of the line that passes through -5,-1 and 10,-7 is y+7= -2/5(x-10). What is the standard fo

scoundrel [369]

2x + 5y = -15 is the standard form of equation

Solution:

Given that,

The point slope form of the equation of the line that passes through (-5, -1) and (10, -7) is given by:

$y + 7 = \frac{-2}{5}(x-10)$

We have to write the standard form of the equation

The standard form of an equation is Ax + By = C

In this kind of equation, x and y are variables and A, B, and C are integers

Let us convert the given equation into standard form

$y + 7 = \frac{-2}{5}(x-10)\\\\\text{Simplify the right hand side of equation }\\\\y + 7 = \frac{-2x}{5}+\frac{20}{5}\\\\y + 7 = \frac{-2x +20}{5}\\\\5(y+7) = -2x + 20\\\\\text{Simplify the left hand side of equation }\\\\5y + 35 = -2x + 20\\\\\text{Move the variables to left side of equation and constants to right side }\\\\2x + 5y = 20 - 35\\\\2x + 5y = -15$

Thus the standard form of equation is found

5 0

3 years ago

From the list of these numbers 3,5,7,12,15,18,20 What is a factor of 10

il63 [147K]

The factors of 10 are 1, 2, 5, and 10. You can also look at this the other way around: if you can multiply two whole numbers to create a third number, those two numbers are factors of the third. 2 x 5 = 10, so 2 and 5 are factors of 10.

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3 years ago

Hi someone plz explain what the distributive property is

alexira [117]

Answer:

its hard to explain as a simple answer but i can explain w an example

Step-by-step explanation:

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3 0

3 years ago