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muminat
3 years ago
14

How do I work this out

Mathematics
1 answer:
vazorg [7]3 years ago
7 0
Check the picture below.

make sure your calculator is in Degree mode.

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A machine wheel spins at a rate of 500 revolutions per minute. If the wheel has a diameter of 80 centimeters, what is the angula
solmaris [256]

Answer: 3,140 radians per minute.

Step-by-step explanation:

We know that the wheel does 500 revolutions per minute.

This is called the frequency of the wheel, and this is written as:

f = 500 rev/min = 500 RPM

The angular speed (or Angular velocity) is written as

ω = 2*pi*f

And this quantity is in radians/unit of time.

where pi = 3.14

then:

ω = 2*3.14*500 (rev/min)*(rad/rev) = 3,140 rad/min

This means that the angular velocity  (or angular speed) is 3,140 radians per minute.

8 0
3 years ago
Read 2 more answers
Their is a rectangle that has measurements in inches. If the width is 7/8 of an inch and the height is 2/3 of an inch, what is t
Alex Ar [27]

Answer:

Area of a rectangle = 7/12 of an inch

Step-by-step explanation

Area of a rectangle = Length × width

In this case, the length is represented by height

Height = 2/3 of an inch

Width = 7/8 of an inch

Area of a rectangle = Length × width

= 2/3 × 7/8

= (2 * 7) / (3 * 8)

= 14 / 24

= 7 / 12

Area of a rectangle = 7/12 of an inch

7 0
3 years ago
Simplify the algebraic expression: 4x + 8y + 7x² + 5x – 2y.
-BARSIC- [3]

Answer:

7x² + 9x + 6y

Step-by-step explanation:

7x² + 4x + 5x + 8y - 2y

5 0
3 years ago
Find the common factor out of -12+15x.
KiRa [710]
It would be: -12 + 15x = 3(-4+5x)

So, after common factor out, your answer is 3(-4+5x)

Hope this helps!
4 0
3 years ago
210 students were asked whether they want to go to a water park or a roller skating rink for a class party.
tankabanditka [31]

Answer: How many boys want to go skating

Step-by-step explanation: sorry if wrong but if you add 50 and 45 and 60 you get 155 that is not 210 so 2

7 0
3 years ago
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