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Ksju [112]
3 years ago
9

What is the value of x?

Mathematics
2 answers:
Alchen [17]3 years ago
7 0
I believe that x would be equivalent to 70
mash [69]3 years ago
3 0
Since line m and line n are parallel, that means 45° and (2x-5)° add up to 180°
45+(2x-5)=180
2x-5=135
2x=140
x=70
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Help idk how to do this ASAP please
Sergio039 [100]

Answer:

The area of ∆DEF = 4.5in²

Step-by-step explanation:

From the above diagram,

∆BAC ~∆DEF

It is important to note that if two triangles are similar, the ratio of their areas is equal or equivalent to the ratio of the areas of their sides

This means for the above question, that

We have the bigger triangle = ∆BAC has a side of 4 in and Area = 8 in²

The small triangle has a side of 3in

Finding the scale factor k = ratio of the sides of both Triangles

k = 4/3

k² = (4/3)²

k² = 16/9

Hence,

Area of ∆BAC/ Area of ∆DEF = 16/9

8in²/Area of ∆DEF = 16/9

We cross Multiply

8 in² × 9 = Area of ∆DEF × 16

Divide both sides by 16

Area of ∆DEF = 72/16

= 4.5in²

Therefore, the Area of ∆DEF rounded to the nearest tenth = 4.5in²

8 0
2 years ago
Please help me please
irina1246 [14]

Answer:

The answer is Parson's Market.

Step-by-step explanation:

First you want to find out how much one pound costs.

For Parson's you take 11.34 and divide it by 6.

11.34 / 6 = 1.89

Then you take how many pounds you are trying to get (7) and multiply it by the price per pound (1.89)

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3 0
3 years ago
Find the perimeter and area of a rectangle with a length of 3.4cm and a width of 4.3cm
zimovet [89]

Answer:

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Area of a rectangle

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victus00 [196]

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