Answer:
7 km
Step-by-step explanation:
Substitute:
The equation for area of a semi-circle is 
A = 
76.97 = 
Multiply by 2 on both sides:
2(76.97) = (
)2
153.94 = 
Divide by pi on both sides:
153.94 = 
/pi /pi
49.03 ≈ 
Find the square root:

7 = r
The answer 25 hope it helps
Example: Set up proportions.
3/4 cups → 1 batch
x cups → 2 batches
x = 2(3/4) = 6/4 = 1 1/2 cups
3/4 cups → 1 batch
y cups → 9 batches
y = 9(3/4) = 6 3/4 cups
Answer:
, x>=0
Step-by-step explanation:

To find the inverse function , replace f(x) by y

Replace x with y and y with x

Solve the equation for y
take square root on both sides

Now subtract 6 from both sides

replace y with g(x)

Gradient is basically the same as slope in this instance. so the answer would be positive 4.