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zysi [14]
3 years ago
7

First person will be marked brainliest if correct!!! plz help!!!

Mathematics
2 answers:
Ivahew [28]3 years ago
6 0

Answer:

63

Step-by-step explanation:

I'm not 100% sure but I'm almost 98% sure this is right

Anuta_ua [19.1K]3 years ago
5 0

Answer:

40 = 18.25 + 0.34x

x is the sheets of paper she can buy

x = 63.9

So she can buy 63 sheets of paper and have a little change left over.

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Write your answer as a whole number and remainder.530/34
arsen [322]
Hey, Zalah. For my answer, I simplified 530/34. Which equals <span>15.58824. Hope this helps! :) </span> 
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3 years ago
Prove that sinΘcosΘ=cotΘ is not a trigonometric identity by producing a counterexample.
yan [13]
<span>sin x + cos x = l would be the answer</span>
4 0
3 years ago
Find the product of 7x and 13x^2-8
Firdavs [7]
7x (13x^2 - 8) = 91x^3 - 56x
3 0
3 years ago
What is the row echelon form of this matrix?
USPshnik [31]

The row echelon form of the matrix is presented as follows;

\begin{bmatrix}1 &-2  &-5  \\ 0& 1 &  -7\\ 0&0  &1  \\\end{bmatrix}

<h3>What is the row echelon form of a matrix?</h3>

The row echelon form of a matrix has the rows consisting entirely of zeros at the bottom, and the first entry of a row that is not entirely zero is a one.

The given matrix is presented as follows;

\begin{bmatrix}-3 &6  &15  \\ 2& -6 &  4\\ 1&0  &-1  \\\end{bmatrix}

The conditions of a matrix in the row echelon form are as follows;

  1. There are row having nonzero entries above the zero rows.
  2. The first nonzero entry in a nonzero row is a one.
  3. The location of the leading one in a nonzero row is to the left of the leading one in the next lower rows.

Dividing Row 1 by -3 gives:

\begin{bmatrix}1 &-2  &-5  \\ 2& -6 &  4\\ 1&0  &-1  \\\end{bmatrix}

Multiplying Row 1 by 2 and subtracting the result from Row 2 gives;

\begin{bmatrix}1 &-2  &-5  \\ 0& -2 &  14\\ 1&0  &-1  \\\end{bmatrix}

Subtracting Row 1 from Row 3 gives;

\begin{bmatrix}1 &-2  &-5  \\ 0& -2 &  14\\ 0&2  &4  \\\end{bmatrix}

Adding Row 2 to Row 3 gives;

\begin{bmatrix}1 &-2  &-5  \\ 0& -2 &  14\\ 0&0  &18  \\\end{bmatrix}

Dividing Row 2 by -2, and Row 3 by 18 gives;

\begin{bmatrix}1 &-2  &-5  \\ 0& 1 &  -7\\ 0&0  &1  \\\end{bmatrix}

The above matrix is in the row echelon form

Learn more about the row echelon form here:

brainly.com/question/14721322

#SPJ1

8 0
1 year ago
1 + 1 + 1 1/4 + 1 1/2 + 1 1/2 =
Cerrena [4.2K]

Answer: 6.25 or 6 \frac{1}{4}

Step-by-step explanation:

Lets do a pro gamer move and convert all fractions to decimals.

We now have 1+1+1.25+1.5+1.5.

From there on we simply do addition.

1+1+1.25+1.5+1.5=6.25

We get 6.25 or 6 \frac{1}{4}

4 0
3 years ago
Read 2 more answers
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