Step-by-step explanation:
(6+r)^2 = 81 + r^2
36 + 12r+ r^2 = 81 + r^2
12r = 81-36 = 45
r = 15/4 = 3.75
The square root is 4x6
If you have anymore, this should help you: http://www.math.com/students/calculators/source/square-root.htm
Answer:
Step-by-step explanation:
<u>Use cosine to solve this:</u>
- cos 17° = x / 1000
- x = 1000 cos 17°
- x = 956 yds
Correct choice is C