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Flura [38]
3 years ago
14

What is the scale factor

Mathematics
1 answer:
olga2289 [7]3 years ago
4 0
The scale factor is 39
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What’s y of 2x+3y=7.20 and 4x+2y=8.80
Arturiano [62]

Answer:

(x,y)=(3/2,7/5)

Step-by-step explanation:

7 0
3 years ago
Questol 2 UI IU
castortr0y [4]
The answer would be D because an indulgence is when you pay to forgive your sin
6 0
4 years ago
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Solve the 3 × 3 system shown below. Enter the values of x, y, and z. X + 2y – z = –3 (1) 2x – y + z = 5 (2) x – y + z = 4 (3)
Svet_ta [14]
<h2>Answer:</h2>

\boxed{x=1, \y=-1, \ z=2}

<h2>Step-by-step explanation:</h2>

We will use the Gaussian elimination method to solve this problem. To do so, let's follow the following steps:

Step 1: Let's multiply first equation by −2. Next, add the result to the second equation. So:

\begin{array}{ cccc }~~ x&+~~2~ y&-~~~~~ z&~=~-3\\&-~~~5~ y&+~~3~ z&~=~11\\~~ x&-~~~~~ y&+~~~~ z&~=~4\end{array}

Step 2: Let's multiply first equation by −1. Next, add the result to the third equation. Thus:

\begin{array}{ cccc }~~ x&+~~2~ y&-~~~~~ z&~=~-3\\&-~~~5~ y&+~~3~ z&~=~11\\&-~~~3~ y&+~~2~ z&~=~7\end{array}

Step 3: Let's multiply second equation by −35, Next, add the result to the third equation. Therefore:

\begin{array}{ cccc }~~ x&+~~2~ y&-~~~~~ z&~=~-3\\&-~~~5~ y&+~~3~ z&~=~11\\&&+~~\frac{ 1 }{ 5 }~ z&~=~\frac{ 2 }{ 5 }\end{array}

Step 4: solve for z, then for y, then for x:

\frac{ 1 }{ 5 } ~ z & = \frac{ 2 }{ 5 } \\ \\ \boxed{z & = 2}

-5y+3z &= 11\\-5y+3\cdot 2 &= 11\\ \\ \boxed{y &= -1}

By substituting y=-1 \ and \ z=2 into the first equation, we get the x. So:

x+2(-1)-2=-3 \\ \\ x-2-2=-3 \\ \\ \boxed{x=1}

6 0
4 years ago
Read 2 more answers
You are painting a rectangular tabletop. The length of the table top is 6 inches less than 3 times the
dedylja [7]

Answer:

A

Step-by-step explanation:

Let l represent length and w represent width

We know that l = 3w-6

(3w-6)(w) = the area

Use distributive property

Area = 3w^2-6w

A is the correct answer

Hope this helps :)

3 0
2 years ago
Which Go With Each Other ? Will Reward Brainliest
Kisachek [45]
-13 +3x +8 = 3x + (-5)

-9x + 15 - x -10 = -10 x + 5

The other two don't match
3 0
4 years ago
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