We have been given that the diameter of a smaller circle is 7 km and the width of the circular path is 0.5 km. We are asked to find the area of the path.
The area of the path will be equal to area of larger circle minus area of smaller circle.
, where r represents radius of circle.
We know that radius is half the diameter, so radius of smaller circle would be 
km.
The radius of the larger circle will be radius of smaller circle plus width of the path that is 
km.
Therefore, the area of the circular path is approximately 11.8 square km.
The nominal value - without discounting the inflation rate - of income was $ 3000.
If the interest rate was 6%, a rule of three is enough to find the value of the original investment.
3000 - 6%
x - 100%
x = 50,000
The value of the investment was $ 50,000
In this case, the inflation rate also requires a simple calculation.
Inflation corroded $ 1000 dollars of income of $ 3000
Therefore the inflation rate will be 1000/3000 = 33.3%
Answer:
0.08 ounces is interpreted as the Mean Absolute Deviation and this means that
the various weights of each of the 48 eggs deviates from the mean of the egg (2.1 ounces)by 0.08 ounces.
Step-by-step explanation:
Mean Absolute Deviation of a data set is defined as the distance or the deviation between a given data set and the calculated mean.
Mean Absolute Deviation tells us about how much a data set varies from it's mean.
From the above question, we are told that after weighing 48 eggs we have a mean of 2.1 ounces and mean deviation of 0.08 ounces
Therefore this means that the various weights of each of the 48 eggs deviates from the mean of the egg (2.1 ounces)by 0.08 ounces
2 3/4 = 11/4
4 1/8 = 33/8
11/4 / 33/8 = 11/4 * 8/33 = 88/132 = 2/3
he mows 2/3 of an acres per hour
Answer:
-1 and -2
Step-by-step explanation:
x
²+3x+2 = 0
We can solve the expression by first factorizing.
Factorizing by splitting the middle term
we look for 2 numbers that when multiplied will be +2 and when added it will be +3
+2 and +1 = +3 and 2 ( these is correct because it is the same as the question asked)
-2 and -1 = -3 and 2
x²+2x+x+2
= 0
x(x+2)+1(x+2) =0
(x+1)(x+2)= 0
x+1 = 0 x+2=0
x= -1, x= -2
x = -1 and -2
