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3 years ago

14

Given the polynomial 21x 4 + 3y - 6x 2 + 34 1. What polynomial must be subtracted from it to obtain 29x 2 - 7 ? What polynomial

must be added to it to obtain a first degree polynomial?

1 answer:

AlekseyPX3 years ago

5 0

34-6x^2, 21x^4/3y 4 is the degree of the polynomail

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Solve for x: -0.25(-x-12)=2

AlladinOne [14]

Expand the brackets by multiplying everything in the brackets by -0.25.

-x x -0.25 = 0.25x
-12 x -0.25 = 3

0.25x + 3 = 2

-3 from both sides.

0.25x = -1

Divide both by 0.25

x = -4

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3 years ago

Find the solution to the system of equations.

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I am not sure about this question sry but u can try asking a tutor

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Describe and correct the error in finding the median of the data 63,55,49,58,50,59,51

Afina-wow [57]

$\huge\text{Hey there!}$

$\large\text{When you see or hear the word \underline{median} think of its asking you}\\\large\text{\underline{what number is in the MIDDLE?} or it’s asking for the \underline{middle number}}$

$\large\text{Some people can easily find the median by putting your given numbers}\\\large\text{from least (smallest) to greatest (biggest)}}$

$\large\text{49, 50, 51, 55, 58, 59, 63}$

$\large\text{Make sure that you have the SAME amount in each sides of your numbers}$

$\large\text{The median in this given set seems to \underline{55} because it has 3}\\\large\text {numbers on each sides of it.}$

$\boxed{\boxed{\large\text{Answer: \huge \bf 55}}}\huge\checkmark$

$\text{Good luck on your assignment and enjoy your day!}$

~ $\frak{Amphitrite1040:)}$

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3 years ago

Read 2 more answers

Find the inverse of this matrix.<br> 1 -1 -1<br> -1 2 3 <br> 1 1 4

zheka24 [161]

Let's use Gaussian elimination. Consider the augmented matrix,

$\left[\begin{array}{ccc|ccc}1 & -1 & -1 & 1 & 0 & 0\\-1 & 2 & 3 & 0 & 1 & 0\\1 & 1 & 4 & 0 & 0 & 1\end{array}\right]$

• Add row 1 to row 2, and add -1 (row 1) to row 3:

$\left[\begin{array}{ccc|ccc}1 & -1 & -1 & 1 & 0 & 0\\0 & 1 & 2 & 1 & 1 & 0\\0 & 2 & 5 & -1 & 0 & 1\end{array}\right]$

• Add -2 (row 2) to row 3:

$\left[\begin{array}{ccc|ccc}1 & -1 & -1 & 1 & 0 & 0\\0 & 1 & 2 & 1 & 1 & 0\\0 & 0 & 1 & -3 & -2 & 1\end{array}\right]$

• Add -2 (row 3) to row 2:

$\left[\begin{array}{ccc|ccc}1 & -1 & -1 & 1 & 0 & 0\\0 & 1 & 0 & 7 & 5 & -2\\0 & 0 & 1 & -3 & -2 & 1\end{array}\right]$

• Add row 2 and row 3 to row 1:

$\left[\begin{array}{ccc|ccc}1 & 0 & 0 & 5 & 3 & -1\\0 & 1 & 0 & 7 & 5 & -2\\0 & 0 & 1 & -3 & -2 & 1\end{array}\right]$

So the inverse is

$\begin{bmatrix}1&-1&-1\\-1&2&3\\1&1&4\end{bmatrix}^{-1} = \boxed{\begin{bmatrix}5&3&-1\\7&5&-2\\-3&-2&1\end{bmatrix}}$

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3 years ago

Write the value of the digit in the hundreds place and the value of the digit in the tens place in 440. What is the relationship

faltersainse [42]

Both of the digits in the hundreds and tens place are 4, making it a relationship. The 4 in the hundreds place is worth 400, the 4 in the tens place is worth 40, and the 0 in the ones place is worth 0.

Hope this helped!

Nate

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3 years ago