3 years ago

Jennifer and Jessica come up with different answers to the same problem...

Mathematics

1 answer:

podryga [215]3 years ago

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Jessica. pi/pi is rational, ie 1 but pi/e is irrational

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Initially, a spinner points west. Chenille moves it clockwise 2 1/4 revolutions and then counterclockwise 3 3/4 revolutions. In

Zigmanuir [339]

Answer: East

Step-by-step explanation:

Given

A spinner initially pointing towards west is made to move $2\frac{1}{4}$ revolutions clockwise and $3\frac{3}{4}$ revolutions counterclockwise.

After one complete revolution pointer points at the same direction.

So, the net movement of the spinner is

$\Rightarrow 3\dfrac{3}{4}-2\dfrac{1}{4}\\\\\Rightarrow \dfrac{15}{4}-\dfrac{9}{4}\\\\\Rightarrow \dfrac{15-9}{4}\\\\\Rightarrow \dfrac{6}{4}\ \text{or}\ 1\dfrac{2}{4}\ \text{CCW}$

That is 1 and half-revolution counter clockwise

After 1 revolution, direction is same, but after half revolution it points towards east.

The final direction is east.

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3 years ago

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Hey, it’s very easy. You just need to do like that:

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The answer is 4.

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