Hold on ! It's not as bad as you think.
The denominators you have are 8 and 9 .
Those numbers have no common factors, so their product
is their lowest common multiple.
For a common denominator, you should use (8 x 9) = <em>72 .</em>
The definition of the tangent function tells you
tan(angle) = (300 ft) / (distance to mountain)
This equation can be rearranged to
(distance to mountain) = (300 ft) / tan(angle)
For the far end of the river,
distance to far end = (300 ft) / tan(24°) ≈ 673.8 ft
For the near end of the river
distance to near end = (300 ft) / tan(40°) ≈ 357.5 ft
Then the width of the river can be calculated by finding the difference of these distances:
width of river = distance to far end - distance to near end
width of river = 673.8 ft - 357.5 ft
width of river = 316.3 ft
The appropriate answer choice is
316 ft.
Answer:
B
Step-by-step explanation:
-8/2=-4=x
8/2=4=y