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2 answers:

xeze [42]3 years ago

7 0

Answer:

yes

Step-by-step explanation:

My name is Ann [436]3 years ago

6 0

Answer:

.......

Step-by-step explanation:

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Mamont248 [21]

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2 years ago

11Alexandr11 [23.1K]

Answer:

Ф = 39.4 degrees

Step-by-step explanation:

The ratio 5.75 / 7 is the tangent of the angle of elevation. Using the inverse tangent function on a calculator returns Ф = 39.4 degrees.

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3 years ago

dem82 [27]

$(2 \sqrt{5}-4 )(3 \sqrt{5}+2 )=\\2*3*5+2*2* \sqrt{5} -4*3* \sqrt{5}-4*2= \\ 30+4 \sqrt{5}-12 \sqrt{5}-8= \\ 22-8 \sqrt{5}$

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3 years ago

lutik1710 [3]

Answer:

circumference of a circle: pi*d

d is also 2r (2 times the radius)

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3 years ago

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3 years ago