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14. Find the distance between and on the polar plane.

14. Convert the points to Cartesian coordinates.

becomes

(7 cos(217/180 π), 7 sin(217/180 π)) ≈ (-5.59, -4.21)

and is

(5 cos(-23/36 π), 5 sin(-23/36 π)) ≈ (-2.11, -4.53)

Then the distance between the two points is

16. Between the first two seconds, the ball rolls 2 ft. If the distance traveled by the ball between each second forms an arithmetic sequence, then the distances themselves are

1, 3, 5, 7, 9, ...

That is, the distances form a sequence where

We can solve for the n-th distance in terms of the first using the recursive rule above.

and so on, up to

b. x + 1

step-by-step explanation:

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"it's not the heat, it's the humidity".   that's a partly valid phrase you may have heard in the summer, but it's actually both.   the heat index, also known as the apparent temperature, is what the temperature feels like to the human body when relative humidity is combined with the air temperature.   this has important considerations for the human body's comfort.   when the body gets too hot, it begins to perspire or sweat to cool itself off.   if the perspiration is not able to evaporate, the body cannot regulate its temperature.   evaporation is a cooling process.   when perspiration is evaporated off the body, it effectively reduces the body's temperature.   when the atmospheric moisture content (i.e. relative humidity) is high, the rate of perspiration from the body decreases.   in other words, the human body feels warmer in humid conditions.   the opposite is true when the relative humidity decreases because the rate of perspiration increases.   the body actually feels cooler in arid conditions.   there is direct relationship between the air temperature and relative humidity and the heat index, meaning as the air temperature and relative humidity increase (decrease), the heat index increases (decreases).

step-by-step explanation: