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sammy [17]
3 years ago
13

Here’s another one that I’m having trouble with

Mathematics
2 answers:
Alla [95]3 years ago
6 0

The total is 94 units.

A square has four equal sides so...

(5x-1)+(4x+3)+(5x-1)+(4x+3)=94

Combine like terms

19x+4=94

Subtract 4 from both sides

94-4=90

18x=90

Divide by 18 on both sides

90/18=5

X=5

Plug 5 in for x on the length of PQ

4(5)+3

20+3=23

Length of PQ=23 units

ch4aika [34]3 years ago
5 0

Answer:

|PQ|=23

Step-by-step explanation:

The perimeter of a rectangle can be found using the formula;

P=2l+2w

Given: P=94,w=5x-1,l=4x+3

We substitute these values to obtain;

2(5x-1)+2(4x+3)=94

Expand the parentheses to get;

10x-2+8x+6=94

Group similar terms;

10x+8x=94-6+2

Simplify;

18x=90

Divide both sides by 18.

x=5

Side

|PQ|=4x+3

We substitute x=5 to get

|PQ|=4(5)+3

|PQ|=23

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see the explanation

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Read 2 more answers
20 Points!! Please help
Setler79 [48]

Answer:

The graph of the triangle LMN and the image L'M'N' created by rotation of ΔLMN through 180° made  with MS Excel is attached

The transformation involved in the 180° rotation of ΔLMN to create ΔL'M'N' includes;

The changing of the signs of the <em>x</em> and y-values of the coordinates of the vertices ΔLMN to get the corresponding <em>x</em> and y-values of the coordinates of the vertices of ΔL'M'N' as follows;

Before, rotation

The coordinates of the vertices of ΔLMN are; L(3, 3), M(9, 9), and N(9, 3)

After 180° rotation

The coordinates of the vertices of the image of ΔLMN, which is ΔL'M'N' are; L'(-3, -3), M'(-9, -9), and N'(-9, -3)

Therefore, the image of ΔLMN, ΔL'M'N' is located in the third quadrant, while the preimage ΔLMN is in the first quadrant

Part B

The lines drawn through L and L' and through M and M' are colinear lines

Part C

The lines dawn through points N and N' will not pass through the same line as the lines through L and L' and through M and M', because the three points are not colinear

Step-by-step explanation:

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