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3 years ago

Please helppp meee outttt

Mathematics

2 answers:

aleksley [76]3 years ago

6 0

Answer:

9°

Step-by-step explanation:

Sum of the interior angles of any polygon is given = (n-2)180°

where n is the no. of sides

Sum of the interior angles= (5-2)180= 3×180°=540°

Therefore, 10p+12p+149°+148°+5p= 540°

=>27p+ 297°= 540°

=> 27p= 243°

=> p= 243°/27

=> p= 9°

gladu [14]3 years ago

3 0

Answer: 9

Step-by-step explanation:

10p+12p+5p+148+149

27p+297=540

I got the 540 because it has five angles -2 equals three triangles * 180 equals 540

Subtract 297

27p=24

divide by 27

P=9

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3 years ago

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Gekata [30.6K]

Answer:

Converting the equation $x^2-20x+13=0$ into completing the square method we get: $\mathbf{(x-10)^2=87}$

Step-by-step explanation:

we are given quadratic equation: $x^2-20x+13=0$

And we need to convert it into completing the square method.

Completing the square method is of form: $a^2-2ab+b^2=(a-b)^2$

Looking at the given equation $x^2-20x+13=0$

We have a = x

then we have middle term 20x that can be written in form of 2ab So, we have a=x and b=? Multiplying 10 with 2 we get 20 so, we can say that b = 20

So, 20x in form of 2ab can be written as: 2(x)(10)

So, we need to add and subtract (10)^2 on both sides

$x^2-20x+13=0\\x^2-2(x)(10)+(10)^2-(10)^2+13=0\\(x^2-2(x)(10)+(10)^2) \:can\: be\: written\: as\: (x-10)^2 \\(x-10)^2-100+13=0\\(x-10)^2-87=0\\(x-10)^2=87$

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3 years ago

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Artyom0805 [142]

Answer: x= 5-y/2

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Step-by-step explanation:

2x + y= 5

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6x= 15- 3y

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3y= 15- 6x

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4 years ago

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elixir [45]

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