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serg [7]
3 years ago
13

Need help with this quetsion plz quick

Mathematics
2 answers:
ioda3 years ago
3 0
Line 1 is in q1 and line 2 is q4
eduard3 years ago
3 0
Line 1- (-2,1)
Line 2- (-2,1)
Reason:
The lines are parallel to each other and are the same distance apart. And also you can just look at where the points are.
I hope this helped have a good day!
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Find the area of an octagon whose perimeter is 120 cm.
stira [4]

Answer:

The area of an octagon whose perimeter is 120 cm is 1086.4 cm^{2}

Step-by-step explanation:

An octagon is a polygon with eight sides. If the lengths of all the sides and the measurement of all the angles are equal, the octagon is called a regular octagon.

There is a predefined set of formulas for the calculation of perimeter, and area of a regular octagon.

The perimeter of an Octagon is given by

P=8a

and the area of an Octagon is given by

A=2a^{2}(1+\sqrt{2})

We know that the perimeter is 120 cm, solving for side length (a) in the perimeter formula we get

120=8a\\\frac{8a}{8}=\frac{120}{8}\\a=15

Now, we calculate the area

A=2a^{2}(1+\sqrt{2})\\A=2(15)^{2}(1+\sqrt{2})\\A=450\left(1+\sqrt{2}\right)\\A\approx 1086.4 \:cm^{2}

5 0
3 years ago
7x + y = 13<br> 4x – 4y = -20
aalyn [17]

Answer: (x,y) = (1,6)

Step-by-step explanation:

5 0
3 years ago
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Gwen bought 3 sodas at the grocery store if each soda cost $1.85 and she paid with a twenty dollar bill how much change should s
AnnZ [28]

Answer:

14.5 hope this helps!

Step-by-step explanation:

3 times 1.85 is 5.5

20.0 - 5.5= 14.5

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A coin is tossed 1000 times and heads showed up 625 and tails 375
Mnenie [13.5K]

Answer:

Heads: 5/8

Tails: 3/8

Step-by-step explanation:

The probability of getting tails is 375/1000 OR 3/8.

The probability of getting heads is 625/1000 OR 5/8.

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1 year ago
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