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Kay [80]
2 years ago
6

Earth revolves on its axis once every 24 hours. Which statement are true ? Check all that apply

Mathematics
1 answer:
zhuklara [117]2 years ago
3 0

Answer:

The angular velocity of Earth is π/12 radians per hour.

The angular velocity of Earth is 2π radians per day.

Step-by-step explanation:

A full circumference of a circle (as the Equator line on Earth) is 2π radians.

Since the planet does a full revolution in 24 hours... that means it makes a full turn in a day.

So, we can see that in a day, the planet rotates 360 degrees... or 2π radians per day!

Now, if you want to find the angular velocity per HOUR... you divide that by 24... so  2π/24 = π/12 radians

So, we can also say it does π/12 radians per hour.

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Greatest common factor of 12, 60, and 68
Katyanochek1 [597]
To calculate the GCF, you need to list all the prime numbers that will go into each number listed

12: 2, 2, 3
60: 2, 2, 3 5
68: 2,2,17

Now you circle the numbers that are the same in each.

GCF: 2, 2

Multiply these numbers to find the GCF: 4
5 0
3 years ago
Complete the statement with , or =.
Natalija [7]

Step-by-step explanation:

Hey there!

0.3 = 3/8 (equal to eachother)

Reason: (<u>3</u><u>/</u><u>8</u><u> </u><u>=</u><u> </u><u>0.375</u><u>)</u>

<u>So</u><u>,</u><u> </u><u>0</u><u>.</u><u>3</u><u> </u><u>is</u><u> </u><u>equal</u><u> </u><u>to</u><u> </u><u>eachother</u><u>. </u>

<u>0</u><u>.</u><u>3</u><u>=</u><u>0</u><u>.</u><u>3</u>

<em><u>Hope it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

7 0
3 years ago
The points in the table lie on a line. What is the slope of that line?<br> (Look at photo)
EastWind [94]

Answer:

-3/4

Step-by-step explanation:

I hope this helps.

5 0
2 years ago
2<br> 3<br> x +<br> 1<br> 2<br> y = 2<br> 3<br> 8<br> x +<br> 5<br> 6<br> y = −<br> 11<br> 2
Allushta [10]

Answer:

The answer is in the image below

3 0
3 years ago
The perimeter of the isosceles ?ABC with the base BC is equal to 40 cm. Perimeter of the equilateral ?BCD is 45 cm. Find AB and
Juliette [100K]

Answer: AB = 12.5, BC = 15

<u>Step-by-step explanation:</u>

Perimeter of ΔBCD = BC + CD + BD. Since it is an isoceles triangle, then BC = CD = BD. So, Perimeter of ΔBCD = 3BC

3BC = 45

<u>÷3   </u>    <u>÷3 </u>

 BC = 15

Perimeter of ΔABC = AB + BC + AC.  Since it is an isosceles triangle with BC as the base, then AB = AC. So, Perimeter of ΔABC = 2AB + BC

2AB + BC = 40

2AB + 15 = 40

<u>          -15</u>  <u> -15 </u>

2AB       = 25

<u>÷2         </u>   <u>÷2  </u>

      AB  = 12.5

7 0
3 years ago
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