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3 years ago

Can someone solve for x??

Mathematics

1 answer:

miskamm [114]3 years ago

7 0

Sum of interior angle of polygon: S = (n-2) * 180°,

where n is number of sides and where S is total degrees.

With 6 sides, n = (6-2)*180 = 720°

Then set all of the interior equations equal to the sum, or

720 = 5x + 4x+2 + 5x+6 + 2x-2 + 3x+5 + x-10

720 = 20x + 1

719 = 20x

x = $\frac{719}{20}$ = 35.95

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2 points

sattari [20]

Answer:

well the answer is 7 rides

Step-by-step explanation:

25 - 4

=21

21÷3

(p.s working might not be in the right format but its right)

6 0

2 years ago

In the parallelogram, find y.

harkovskaia [24]

Answer:

y = 9

plz mark my answer as brainlist plzzzz vote me also...

8 0

2 years ago

Read 2 more answers

Can someone factor this: x^3 -6x + 11/x - 6/x^3 Thank you!

777dan777 [17]

Hope this helps

Mark brainliest please

3 0

2 years ago

Find the center and the radius of the circle with the equation: x^2 +2x + y^2-2y-14 =0

FrozenT [24]

We need to convert the equation of the circle to standard form only then we can find the radius and the center of the circle.

$x^{2} +2x+ y^{2}-2y-14=0 \\ \\ 
x^{2} +2x+ y^{2}-2y=14 \\ \\ 
x^{2} +2(x)(1)+ y^{2}-2(y)(1)=14 \\ \\ 
 x^{2} +2x+1 + (y^{2}-2y+1)=14+1+1 \\ \\ 
(x+1)^{2}+(y-1)^{2} =16 
$

From this equation we can write:

Center of the circle is (-1,1) and the radius of the circle is 4.

5 0

2 years ago

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Twelve people are given two identical speakers, which they are asked to listen to for differences, if any. Suppose that these pe

Karolina [17]

Answer:

Probability, P(X=3)=0.05371

Step-by-step explanation:

The experiment consists of 12 Bernoulli trials,n=12

Where sucess is defined with difference between the speakers and failure is defined with no difference between the speakers

Since people are guessing,the Probability P of sucess= 1/2

Therefore P(X=3) = b(3; 12, 0.5) = (12/3) (0.5)^3× (0.5)^9

P( X=3) = 0.0537

7 0

2 years ago