The total length of the two bridges is 5020 ft.
In order to find the combined length of these two bridges, simply add the two numbers together.
4260 + 760 = 5020.
Answer:
hence cos ( 2 A ) = cos 2 A − ( 1 − cos 2 A ) = 2 cos 2 A − 1
Step-by-step explanation:Well we know that for two angles A , B
it holds that cos ( A + B ) = cos A cos B − sin A ⋅ sin B hence for A = B you get cos ( 2 A ) = cos 2 A − sin 2 A But sin 2 A = 1 − cos 2 A
I’m pretty sure it’s x=12
-20n-14
-4x5n=-20n
-4x3.5=-14
And that cancels out the plus sign so it will be subtraction.
