Right side of the equation:
cos ( A - B ) - cos ( A + B ) =
= cos A cos B + sin A sin B - ( cos A cos B - sin A sin B ) =
= cos A cos B + sin A sin B - cos A cos B + sin A sin B =
= 2 sin A sin B - left side of the equation ( correct )
The answer is 3 3/8 miles
The original equation is 4x - 6 = 22. We can solve this by first isolating x, and that can be done by initially adding 6 to both sides. After doing this, we are left with 4x = 28. Now, we can simply divide both sides by 4, giving us an x value of x = 7. Therefore, the answer to your problem is x = 7. Hope this helped and have a great Halloween!
Your answer would be 200ft I believe. 20 times 5 times 2 :)