An electric powered fan has a 9 inch diameter blade that
rotates at 4000 revolutions per minute.
Find the angular speed of the sword in radians per minute.
/-\radians/minute

The speed of the fan is 1884 inches per second.

Step-by-step explanation:

Revolution per minute= 4000

Radius = 4.5 inches

Circumference= 2π r

= 2(3.14) (4.5)

= 28.26 inches

1 revolution= 28.26 inches

4000 revolution= (28.26) (4000)

=113040 inches per minute

= 113040/60

= 1884 inches per second

The speed of the fan is 1884 inches per second.

i used to know how to do this in 7th but i forget easily

step-by-step explanation:

a) 0.25x times 3. (could be wrong on equation.)

b) 2.25 pound of dark chocolate. (can i eat all the chocolate? plz? anyway, again, could be wrong, but i hope im right. all the chocolate together should be 5.25 pounds)

have a good day!