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
Answer:
12 feet
Step-by-step explanation:
Answer:
480.53 yards
Step-by-step explanation:
cos(35) = 1000/hypotenuse1 - multiply by h (hypotenuse)
(h1)cos(35) = 1000 - divide by cos(35)
h1 = 1000 / cos(35)
h1 = 1220.7746
Same thing with the angle of depression of 54 degrees.
h2 = 1000 / cos(54)
h2 = 1701.3016
h2 - h1 = 480.53
Answer:
$29.75(without tax) (I don't know if you need it with tax)
Step-by-step explanation: