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enot [183]
3 years ago
10

Find the arc length and show work! - Marking brainliest

Mathematics
1 answer:
nadezda [96]3 years ago
8 0

Answer:

87.965 in.

Step-by-step explanation:

1) the formula of full arc is L=2π*r, the formula of the required 7π/4 is:

L=7π/4 *r;

2) according to the formula above:

L=7π*16/4=28π≈87,964594300514210676954014731826 (in).

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P is 10%, X is 150, so the equation is 10% * 150 = Y.
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2 years ago
There are going to be presentations at a school. If 30 people can fit in a room, how many rooms are necessary if there area tota
DanielleElmas [232]
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3 years ago
The angle of depression from the top of a cruise ship to the top of a sailboat is 22. Sitting above water, the cruise ship is 23
dusya [7]

Answer:

The distance between the cruise ship and the sail boat is 517 feet.

Step-by-step explanation:

The cruise ship is 236 feet tall, and the sailboat is 236 tall; this means the distance between the top of the cruise ship and the top of the sail boat is

236 feet - 27 feet = 209 feet.

We also know that the angel of depression from the top of the cruise ship to the bottom of the cruise ship is 22°. This forms a right triangle as shown in the figure attached.

Now from trigonometry we get:

tan \: \theta = \dfrac{209}{d}

d= \dfrac{209}{tan\:\theta }

\boxed{d=517ft}

The distance between the cruise ship and the sailboat is 517 feet.

3 0
3 years ago
What is the value of x -3(-x)-6=-3x+10
Romashka [77]
-3(-x)-6=-3x+10
-3 -3
(-x)-6=-3x+7
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7 0
3 years ago
Please help, will mark brainiest. 20+ POINTS
professor190 [17]

Answer:

2.5•2 = 5

Step-by-step explanation:

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Area of a square is equal to:

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<u>substitute</u>

A=2.5*2=5\ in^{2}

4 0
3 years ago
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