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Andru [333]
2 years ago
6

Two bird watchers position themselves at point A (the beach) and point C (the shed) which are 111 feet apart. The both spot a ra

re bird at point B using their binoculars. If they see the bird at 94º and 46º respectively, how far is the bird from the bird watcher in the shed (point C) (to the nearest foot). *

Mathematics
1 answer:
o-na [289]2 years ago
7 0

Answer:120 ft

Step-by-step explanation:

Given

Beach(A) and Shed (C) is 111 feet apart

If Two bird watchers set then at A and C and observe a bird at 94^{\circ} and  46^{\circ}

Using Trigonometric relation

\tan 86=\frac{h}{x}---1

\tan 46=\frac{h}{111+x}---2

from 1 and 2

x\tan 86=(111+x)\tan 46

x=8.66\ ft\approx 9\ ft

Therefore bird is 120\ ft from point C

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Step-by-step explanation:

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For a circle having center (8, -4) and radius r = 1

Equation of the circle will be,

(x - 8)² + (y + 4)² = 1²

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Option (1) is the answer.

Question (2)

Circle with the center (-1, 0) and a point (2, -4) on it,

Radius of the circle = Distance between the center and the given point on                                         circumference

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Question D:

The terms in the expression are '60a' and '30c'

Question E:

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2 × 30 × a
3 × 20 × a
4 × 15 × a
5 × 12 × a
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Question F

Factors of 30c could be
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Question G

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Question H

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Step-by-step explanation:

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<em>Additional comment</em>

You can see the relationship between a root index and an exponent if you consider what the root means.

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