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3 years ago

The diagram shows a right triangle and three squares. The area of the largest square is 55 unit^2

Mathematics

2 answers:

faust18 [17]3 years ago

7 0

Answer:wheres the diagram

Step-by-step explanation:

tatuchka [14]3 years ago

6 0

Answer:

12 and 43

Step-by-step explanation:

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The composite figure is made up of a rectangle and two pentagons. find the area.

Elis [28]

The area of the pentagon is 5(1/2*9*13) = 5(58.5) = 292.5 square units.

There are 2 pentagons, so the area of the two are: 292.5 x 2 = 585 square units.

The area of the rectangle is 20 * 13 = 260 square units.

Total area = 260 + 585 = 845 square units.

The answer is D.

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3 years ago

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Solve the quadratic equation by graphing: (2 – 7) + 2 = 38 CHOOSE ALL THAT APPLY

RoseWind [281]

The solution is the x-value of the point of intersection.

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3 years ago

Please answer! will give 5 stars, brainliest (if two people answer.), 20 pts, and thanks.

Charra [1.4K]

Answer:

Step-by-step explanation:

Angle 2 and 4 are supplementary, so if angle 4 is 123, then 180-123=57.

So angle 2 is 57.

Then, if angle 2 and 3 are 57 and we know that all angles of a triangle have to add up to 180, then:

57+57+angle 1=180

114+ angle 1=180

angle 1= 66

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2 years ago

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iren [92.7K]

The answer will be D.

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3 years ago

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Verifying Trig Functions

anzhelika [568]

Answer:

The answer to your question is below

Step-by-step explanation:

csc α - cot α = $\frac{sin \alpha }{1 + cos \alpha }$

Work with the left part

$\frac{1}{sin\alpha } - \frac{cos \alpha }{sin \alpha}$

Simplify

$\frac{1 - cos\alpha }{sin\alpha }$

Multiply by the reciprocal

$\frac{1 - cos\alpha }{sin \alpha } x \frac{1 + cos\alpha }{1 + cos\alpha }$

Simplify

$\frac{1 - cos^{2}\alpha}{sin\alpha (1 + cos\alpha)}$

Remember that

sin²α = 1 -cos²α

Substitute the previous equation

$\frac{sin^{2}\alpha }{sin\alpha(1 + cos\alpha ) }$

Simplify

$\frac{sin\alpha}{1 + cos \alpha}$

The identity i proved.

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3 years ago