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AlekseyPX
3 years ago
6

A circle has a radius of 3. An arc in this circle has a central angle of 60 degrees. What is the length of the arc?

Mathematics
1 answer:
Yuliya22 [10]3 years ago
6 0

Answer:

The answer is 3.14 units

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Please I need the answer very fast ​
tatyana61 [14]

Answer:

1 - cosΘ

Step-by-step explanation:

using the identity

sin²x + cos²x = 1 , then

sin²x = 1 - cos²x

\frac{sin^20}{1+cos0}

= \frac{1-cos^20}{1+cos0} ← factor 1 - cos²Θ as a difference of squares

= \frac{(1-cos0)(1+cos0)}{1+cos0} ← cancel 1 + cosΘ on numerator/ denominator

= 1 - cosΘ

7 0
2 years ago
There are three circular tabletops with diameters of 5 ft, 7 ft, and 9 ft. Identify the area of each table top rounded to the ne
ella [17]
It is almost about 19.6; 38.5; 63.6
6 0
2 years ago
The largest frog in the world is the goliath,found in west africa. It can grow to be 12 inches long. The smalest in the world is
denis23 [38]

Answer:

4.8 inches

Step-by-step explanation:

Given: The largest frog in the world is goliath which is 12 inches long.

           The smallest frog is about 2.5 as long as the goliath.

Lets assume the length of smallest frog be "x".

As given, smallest frog is about 2.5 as long as the goliath.

∴ we can form equation as 2.5x= 12\ inches

Solving the equation to find the value of x

2.5x= 12

Dividing both side by 2.5

⇒ x= \frac{12}{2.5}

∴ x= 4.8\ inches

Hence, the length of smallest frog is 4.8 inches.

3 0
2 years ago
Is -x^2+5x-21 linear or not?
MA_775_DIABLO [31]
It is not linear because x is raised to the second power. Therefore it is not straight and would be kindof like a rainbow cut in half on the graph..
3 0
2 years ago
Read 2 more answers
The point(3,7) is reflected in the y axis what are the coordinates now
lapo4ka [179]
When a point P(a, b) is reflected about the y-axis, the coordinates of the reflected point are P'(-a, b).

Thus, the reflection of point (3, 7) is (-3, 7), as shown in the picture.


Answer: (-3, 7)


3 0
3 years ago
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