we know that
the area of a circle is equal to

where
r is the radius of the circle
Step 1
Find the radius for 

Solve for r

substitute the value of area

Step 2
Find the radius for 

Solve for r

substitute the value of area

therefore
the radius r

<u>the answer is the option A</u>

Answer:
2x+3y=-6
x-y=5
Step-by-step explanation:
just finished the lesson these are the answers
Answer:
0.85x+2.75<=10
Step-by-step explanation:
x is the number of miles he drives
the +2.75 is the flat rate
the <=10 is it must cost no more than 10, it may cost less, or equal, but no more than 10
Answer:
The amount of sales in order to meet her goal must be greater than or equal to $20,000
Step-by-step explanation:
Let
x----> represent the amount of sales Liz will need
we know that
The amount of sales for the month multiplied by the commission rate as a decimal plus the fixed amount must be greater than or equal to $2,800 each month
so
The inequality that represent this situation is

solve for x
subtract 2,200 both sides


divide by 0.03 both sides

The amount of sales in order to meet her goal must be greater than or equal to $20,000