So we can put in to a fraction and times both values by ten then we can divide as shown
=(3a-4a-3a)+(2b+6b-2b)+(-7c+9c-7c)
=-4a+6b-5c #
<span>Generally according to mathematical formulas the standard deviation is defined as the square root of the variance.Same formula applied to this question where variance is 100 which results that standard deviation is 10.Whereas variance is the square of the standard deviation which is 100 derived in the question.</span>
Answer: 49y³
Step-by-step explanation:
.87
all you do is divide by 100
