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Mrrafil [7]
3 years ago
7

what are the coordinates of a point on the unit circle if the angle formed by the positive x- axis and the radius is 45°??

Mathematics
1 answer:
Delvig [45]3 years ago
4 0
On the unit circle, the radius is 1 and the trigonometric ratios are:

sin(angle( = y-coordinate / radius = y-coordinate / 1 = y-coordinate = y

cos(angle) = x-coordinate / radius = x-coordinate / 1 = x

Then:

y = sin(angle) = sin(45°) = √2 / 2

x = cos (angle) = cos (45°) = √2 / 2

=> Answer: (√2 / 2 , √2 / 2), which is the option A)
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a paper airplane can be made out of two different pieces of paper: a circular piece 10 inches wide and a square piece 11 inches
madreJ [45]
Compare the areas of the 2 different pieces of paper.

For the circle, the area is A=pi * r^2, which works out to A = pi(5 inches)^2.

For the square, the area is A = s^2, where is the side length, which here is 11 inches.

Finish these calculations, and then compare your two areas.  Which is the larger?
5 0
3 years ago
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dusya [7]

Answer:

70

Step-by-step explanation:

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6 0
3 years ago
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Karo-lina-s [1.5K]

Answer:

Randomly scattered meaning

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4 0
3 years ago
The cheetah is 7/6 the Perigen falcon is 10/3
Brilliant_brown [7]
The answer is 2  \frac{1}{6}.

Explanation:

In order to subtract the fractions, we must make them like fractions. To do this, the denominators must be the same by multiplying (only). Since the first fraction is \frac{10}{3}, 3 can be multiplied by 2 to get 6, which is the other fraction, we can multiply it. Whatever you do to the denominator you must do to the numerator. Now multiply 2 by the numerator (10) to get \frac{20}{6}. Now we can subtract the fractions \frac{20}{6} and \frac{7}{6} to get 13/6. Since this fraction is not in mixed fraction form yet, we must do that first.  goes into 13 twice, so the whole number is 2 and there is still 1 left, making the fraction \frac{1}{6}. Therefore, the difference is 2 \frac{1}{6}.
8 0
3 years ago
Plzzzz do the right awnsers i failed the other on e plzz no du meys plzz i beg
kramer

Answer:

D. Vertex: (3, -1); zeros: (2,0), (4,0), y-intercept: (0,8)

Step-by-step explanation:

I used the desmos graphing calculator. Just plug in your equation and it should be pretty easy to find these points

8 0
3 years ago
Read 2 more answers
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