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likoan [24]
3 years ago
12

Help please. I don't understand

Mathematics
1 answer:
inna [77]3 years ago
7 0
In the middle of the first squre
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Determine the coordinates of the point on the unit circle corresponding to the given central angle. If necessary round your resu
Olenka [21]

Answer:

Option A. (-1, 0)

Step-by-step explanation:

In the figure attached,

Circle O is a unit circle (having radius r = 1 unit)

If a point A with central angles = θ, is lying on the circle then the coordinates of the point A will be,

x = r.cosθ

x = 1.cosθ = cosθ

and y = r.sinθ

y = 1.sinθ = sinθ

Therefore, coordinates representing the point A will be (cosθ, sinθ).

As per question the given point A is lying at P (a point having central angle θ = 180°)

Coordinates of point P will be

(x', y') → (cos180°, sin180°)

        → (-1, 0)

Therefore, Option A will be the answer.

3 0
3 years ago
Round your answer to the nearest percent.
emmainna [20.7K]

Answer:

Step-by-step explanation:

Givens

Number not using given app = 71

Total number of students  = 219

% = ?

Solution

P(~given app) = 71 / 219

P(~given app)  = 0.324

% = 0.324 * 100  = 32.4%

Answer

32.4% do not use Given App

4 0
2 years ago
How do I solve this? I need help
Sedaia [141]
Answer: √51
—————————
a^2 + b^2 = c^2
a^2 + 7^2 = 10^2
a^2 + 49 = 100
a^2 = 51
√(a^2) = √51
a = √51
7 0
3 years ago
Given the equation 5x + 23 = − 2x − 12, which order of operations completely solves for x? (1 point)
Brrunno [24]
5x+23+-2x-12
7x+23=-12
7x=-35
x=5
5 0
3 years ago
What is 5 divided by 3/7
DENIUS [597]

it would be 35/3 or 11 2/3
4 0
3 years ago
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