4 submarine designed to explore the ocean floor is at an elevation of 13,000
1 answer:
You might be interested in
Answer:
13.8
Step-by-step explanation:
We can use trigonometry to find the length of DE
Remember these are the trigonometric ratios
Sin = Opposite over Hypotenuse
Cos = Adjacent over Hypotenuse
Tan = Opposite over Adjacent
For ∠FDE we are given its opposite side length ( FE ) and need to find its adjacent angle ( DE )
When working with opposite and adjacent we use the trig ratio tangent
That being said we want to create an equation to solve for (DE) ( Recall that tan = opposite over adjacent. ) ( let DE = x )
so
now we solve for x
Step 1 multiply each side by x
tan(51) * x = x tan (51)
now we have x tan (51) = 17
step 2 divide each side by tan (51)
we now have
we're left with x = 13.76632856
Finally we round to the nearest tenth and get that the answer 13.8