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oksian1 [2.3K]
3 years ago
15

Solve: (19 + 1^5) / 1/2 +5

Mathematics
1 answer:
Korvikt [17]3 years ago
8 0

Answer:

15

Step-by-step explanation:

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Please help me with average
Anvisha [2.4K]

Answer:

2x+1

Step-by-step explanation:

(3x-5)+(x+2)+(2x+6)=6x+3

6x+3/3=2x+1

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Is 7x=5x-25+30 no solution,one solution, or all real numbers? <br><br> Thank you!
viva [34]

One solution let's find that

\\ \rm\hookrightarrow 7x=5x-25+30

\\ \rm\hookrightarrow 7x=5x+5

\\ \rm\hookrightarrow 2x=5

\\ \rm\hookrightarrow x=5/2

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2 years ago
The formula for the area of a trapezoid is A = h(b1 + b2), where A = area, h = height, b1 = base 1, and b2 = base 2. For a trape
enyata [817]
The area of the trapezoid is A= 56
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3 years ago
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Help with #17 please
ohaa [14]
2 evens is an positive
1 odd,1 even is a odd
2 odd is an ofd
8 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
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