Step by step:
first you need to plug in the x into the equation
-5(4)-18-7(4)
now you solve
-20-18-28
which equals
-66
Answer:
25
Step-by-step explanation:
I got 25, because I worked it out and if you plug in 25 to the equation when adding all of the angles and making them equal to 180 degrees, you end up with the remaining degrees to be 25, leaving angle C at 25 degrees. I hope this helps.
Answer:
Step-by-step explanation:
<u>Use two points on the graph to get an equation:</u>
<u>The slope</u>: m = (60 - 8)/6 = 8.667
<u>The y- intercept</u> is 8
<u>The equation of the line of best fit:</u>
1. 27.3 2.4.8 3.11.4 4.10.9
The new mean and standard deviation is 26 and 15, when each score in data set is multiplied by 5 and then 7 is added.
According to the question,
Original mean is 10 and original standard deviation is 5 . In order to find to new mean and standard deviation when each score in data set is multiplied by 5 and then 7 is added.
First "change of scale" when every score in a data set is multiplied by a constant, its mean and standard deviation is multiplied by a same constant.
Mean: 10*3 = 30
Standard deviation: 5*3 = 15
Secondly "change of origin" when every score in a data set by a constant, its mean get added or subtracted by the same constant and standard deviation remains constant.
Applying change of origin in the above mean and standard deviation
Mean: 30 - 4 = 26
Standard deviation: Remains same = 15
Hence, the new mean and standard deviation is 26 and 15, when each score in data set is multiplied by 5 and then 7 is added.
Learn more about Mean and standard deviation here
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