Answer:
A = 9pi
Step-by-step explanation:
The area of a circle is given by
A = pi r^2
We know the diameter
r = d/2 = 6/2 = 3
A = pi (3)^2
A = 9pi
<h3>I'll teach you how to solve -4 1/5 - (-13 1/10)</h3>
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-4 1/5 - (-13 1/10)
Convert mixed numbers to improper fractions:
-21/5-(-131/10)
Apply rule:
-25/1 + 131/10
Adjust fractions based on the LCM:
-42/10+131/10
Since the denominators are equal, combine the fractions:
-42+131/10
Add/Subtract the numbers:
89/10
Convert Improper fractions to mixed numbers:
8 9/10
Your Answer Is The First Option 8 9/10
plz mark me as brainliest :)
I believe the answer is D)
Answer:
Step-by-step explanation:
The z-score tells us how many standard deviations a value is away from the mean.
The formula is:
where x is the value, 
is the mean, and s is the standard deviation.
We want to find the z-score for the score of an 83, the mean is 72, and the standard deviation is 5.
Substitute the values into the formula.
Solve the numerator.
Divide.
The z-score is 2.2, which means the score of 83 is 2.2 standard deviations above the mean.
