Answer:
Θ ≈ 22.6°
Step-by-step explanation:
Using the cosine ratio in the right triangle
cosΘ = =
=
, thus
Θ = (
) ≈ 22.6° ( to the nearest tenth )
How would you find four points using an equation? Use this as an example... y = 40x + 30
1 answer:
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Answer:
The speed of the boat in still water is 13 miles/hour.
The speed of the current is 6 miles/hour.
Step-by-step explanation:
Let the speed of the boat in still water be x
And speed of the current be y
When Irena's travelling downstream, the speed of the boat is:
Traveling down stream the speed of the boat will be :
..(1)
When Irena's travelling upstream, the speed of the boat is:
Time taken by boat = 5 hours and 30 min = 5.5 hours (1 hour = 60 min)
Traveling down stream the peed of the boat will be :
..(2)
On Solving both equation (1)and (2).
putting value of x in (2) equation
y = 6 miles/hour
Putting value of y in (1) equation:
, x = 13 miles/hour
The speed of the boat in still water is 13 miles/hour.
The speed of the current is 6 miles/hour.
we are given
step-1: Factor terms
now, we can plug these values
and we get
=
step-2: Cancel common terms
we get
=
we can again cancel numerator and denominator
and we get
=.............Answer