Where can we put parentheses in 2 x 3+1+2 to make it equivalent to 12?
1 answer:
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Answer:
<em>The larger gear will rotate through 156°</em>
Step-by-step explanation:
<u>Arc Length</u>
The arc length S of an angle θ on a circle of radius r is:
Where θ is expressed in radians.
The smaller gear of r1=3.7 cm drives a larger gear of r2=7.1 cm. The smaller gear rotates through an angle of θ1=300°.
Convert the angle to radians:
The arc length of the smaller gear is:
The larger gear rotates the same arc length, so:
Solving for θ2:
The larger gear will rotate through 156°
6 Possible outcomes.
this is a combination problem the order of drawing a marble is not important because red, blue would be the same outcome as blue, red.
the combination formula is as follows.
plug in 4 for n and 2 for r.
this is a combination problem the order of drawing a marble is not important because red, blue would be the same outcome as blue, red.
the combination formula is as follows.
plug in 4 for n and 2 for r.