Answer: An error was made! All correlation coefficients: -1 ≤ r ≤ 1.
Lois is correct. This is because multiplication is repeated addition. It means that when your addends are just the same number but added several times, the sum is just equivalent to the product of that number times the number of times it was added. For example, 4+4+4 = 4×3 = 12.
Joan's remaining distance is reduced by (600 ft)/(3 hours) = 200 ft/hour. She starts with 1600 ft remaining, so her distance remaining (y) after x hours is
.. y = -200x +1600
In order for the distance remaining to be zero, you must have
.. 0 = -200x +1600
.. 200x = 1600
.. x = 1600/200 = 8
It will take Joan 8 hours to hike 1600 ft.
Answer:

Step-by-step explanation:
Let the outside temperature be
degree.
So, when
degree, number of members, 
Now, for every degree rise in temperature, 10 members gets added.
So, when the temperature is
degrees, rise in temperature is
degrees.
Therefore,
For
degrees rise, number of members added = 
Hence, total number of members added as a function of temperature is given as the sum of members at
degrees and for
degrees rise. This gives,
