For the first one write 9 divided by 2 gives your your radius an it’s 3.5. the formula is 2 x 3.14 x radius and that gives you 21.98.
the 2nd one is 2 x 3.14 x 9 = 56.52
the 3rd is 2 x 3.14 x 5= 31.4
formula is always 2 x 3.14 (or pie) x radius
to get your radius from your diameter you do your diameter divided by 2
Answer:
<u>9 workers finished the repairs, therefore 9 members of the original crew were removed. </u>
Step-by-step explanation:
1. Let's review the information given to us to answer the question correctly:
Original crew scheduled to finish repairing a highway = 18 person
Number of days remaining to finish the work = 10 - 4 = 6 days
Number of days that the rest of the crew finished the repairs = 12 days
2. How many workers were removed from the crew?
We will use Inverse Rule of Three to answer this question because the less workers the crew has the more time it will take them to finish the repairs, as follows:
Workers Days
18 6
x 12
12x = 18 * 6 (Inverse Rule)
12x = 108
x = 108/12
x = 9
<u>9 workers finished the repairs, therefore 9 members of the original crew were removed. </u>
Graphing the system of equations is shown in figure attached.
Solution set is (2,-4). The lines will intersect at (2,-4)
Step-by-step explanation:
We need to graph the system of equations. 
First we will find value of x and y
Let:

Add eq(1) and eq(2)

Putting value of x in eq(1) and finding y

So, y=-4
Graphing the system of equations is shown in figure attached.
Solution set is (2,-4). The lines will intersect at (2,-4)
Keywords: System of equations
Learn more about system of equations at:
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0.67 Since 2 (in the thousandths place) is lower than 5 you round down wich just leaves you with 0.67
Answer:
A
Step-by-step explanation:
To sovle this we must combine the numbers togther and the variables togther.
We have:
8c+6-3c-2
Lets take out the c's and combine them:
8c -3c
=
5c
Now lets take out the numbers:
6-2
=
4
Now lets put these back together and we get the expression:
5c+4
This looks like A.
Hope this helps! :D