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lana66690 [7]
3 years ago
8

Anyone have any idea how to do this???

Mathematics
1 answer:
bagirrra123 [75]3 years ago
3 0

Answer:

A

Step-by-step explanation:

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The area of the circle will be 28.27 km.
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Please help show work too please thank you
Black_prince [1.1K]
(3x-9) +(x+19)+x=180
5x+10=180
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2x+(2x+10)+x=180
5x+10=180
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A planet has a circular orbit around a star. It is a distance of 65,000,000 km from the centre of the star. It orbits at an aver
guapka [62]

Answer:

Step-by-step explanation:

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s = speed = 65000 km / hr

t = time = d / s

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8 0
3 years ago
What is the radian measure for an angle that measures 720 degrees?
Scrat [10]

Answer:

720 degrees =  \frac{\pi}{4}\ radians or 0.785 radians.

Step-by-step explanation:

Given:

The angle in degrees in given as 720°

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Now, we know that, the relation between degrees and radians is given as:

180 degree = π radians

Therefore, using unitary method, the value of 1 degree can be calculated.

∴ 1 degree = \frac{\pi}{180}\ radians

Now, the value of 720 degrees can be calculated by multiplying the unit value and 720. So,

720\ degrees=\frac{\pi}{180}\times 720\ radians\\\\ 720\ degrees =\frac{720\pi}{180}\\\\720\ degrees =\frac{\pi}{4}\ radians=0.785\ radians

Hence, the measure of 720 degrees in radians is \frac{\pi}{4}\ radians or 0.25π radians or 0.785 radians.

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3 years ago
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Solve this problem using the substitution method 2y-1/2y=2
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Answer:

y=3/2and x =2

Step-by-step explanation:

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