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34kurt
4 years ago
8

Adena used a qualateral in her ary design. The quadrlateral has no sides ,and only one pair of opposite sides parallel what shap

e of the quadrileteral she used
Mathematics
1 answer:
Radda [10]4 years ago
3 0

Answer: The quadrilateral used here is a trapezium.




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3 years ago
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How to find area of triangle​
alukav5142 [94]

Answer:

(Base x Height)/2

Step-by-step explanation:

Think of a triangle as a square. Use the height times the base, but divide by two because a triangle is 1/2 of a square.

Hope i helped!

5 0
3 years ago
Someone help please
astraxan [27]
The arc length (s) is given in terms of the radius by
  s = rθ
  10 cm = r*(29/180*π) radians
  r = (10 cm)*(180/(29π)) ≈ 19.757 cm

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8 0
4 years ago
Use Cramer's Rule to solve each system.<br> 5x – 3y = 8<br> -2x - y = 10
zlopas [31]

Answer:

-2, -6

Step-by-step explanation:

using cramer rule

5    -3    

-2   -1    

calculatiing the determinant = (5 x-1) - (-3x-2) = -5 -(6) = -5-6=-11

using cramer rule

to calculate x we change the coefficient of x with the answer (8,10)

8   -3

10   -1

we calculate determinant = (8x-1)-(-3x10) = -8-(-30) = -8+30 =22

to calculate x

22/-11= -2

to calculate y we change the coefficient of y with the answer (8,10)

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to calculate y

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6 0
3 years ago
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What is the exact value of cos 112.5°?
ikadub [295]
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cos 112.5 = cos(225/2);
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Then, cos(225/2) = - \sqrt{ \frac{1+cos225}{2} };
We have the formula: cos(270 - x) = -sinx (because cos(a-b) = cosacosb + sinasinb);
Then, cos225 = cos(270-45) = -sin45 = -\frac{ \sqrt{2} }{2} ;
Finally, cos112.5 = -\frac{ \sqrt{2- \sqrt{2} } }{2} ;

3 0
3 years ago
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