Some periodic motions, also known as armonic motions, with which much of us are familiar with are:
- The motion of the swinger when a kid is balancing forward and backward
- The motion of a pendulum
- The motion of the needles of a watch.
- The motion of a satelite around a planet.
- The spinning of the wheel of a stationary bycicle.
- A rocking chair
All the motions in which the object passes once and other times through the same point are periodic motions.
Both scientists and businesses are interested in tracking periodic motions using equations because they appear in many situations in nature and in daily life. The cycles are examples of periodic motion. By tracking this type of motion you can make models that permit you to explain the phenomena and predict cycles. This is predict facts that repeast with a certain period.
Answer:

Step-by-step explanation:
A proportion is an equation that defines that two ratios are equal. When the terms of a proportion are cross multiplied, the cross products are equal. Cross multiplication is the multiplication of the numerator of the first ratio by the denominator of the second ratio and the multiplication of the denominator of the first ratio by the numerator of the second ratio:

Therefore:

The solution of inequality is C < -40
<em><u>Solution:</u></em>
Given that the inequality that is used to find the celsius temperature that are less than -40 fahrenheit
To find: solution of inequality
<em><u>Given inequality is:</u></em>

So we have to solve the above inequality for C

Add -32 on both sides

Multiply both the sides by 

Thus the solution of inequality is C < -40
Just plug in the values.
2xy =
2(30)(2) =
60(2) =
120 <--------------------------Answer
Well the real answer is three hundred-ninety three point five. So numbers around it could be three hundred and fifty and four hundred. An estimate could be three hundred and seventy five.