To solve for x in terms of b, simply treat b as a number, and solve for x as usual: first of all, we expand the left hand side:
Subtract 10 from both sides:
Divide both sides by -2b:
This means that in particular, if we set , we have
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1 answer:
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An inscribed angle has a measure of 1/2 of the intercepting arc. Since our angle is 48°, we can set up the equation 
to represent this. Divide both sides by 1/2:
The measure of the intercepted arc is 96°.
The measure of the intercepted arc is 96°.
Answer:
The correct statements are: B and D.
Step-by-step explanation:
Standard deviation is one of the measure of dispersion or spread of a dataset from the average value of the dataset. The standard deviation measures the variability of the distribution of values.
The higher the spread or variability in the data set, the greater is the standard deviation value and thus greater will be the magnitude of the deviance of the value from their average.
Then the standard deviation (S.D.) is given by,
The correct statements are:
B. It is a measure of variability.
D. It is calculated using the mean.