What is the value of log5 625? Help me plz
2 answers:
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We are to find the value of 
First we evaluate tan(π/4). The value of tan(π/4) is 1.
So,
sin(π/2) = 1
So,
Thus, we can write:
radians.
So, the answer to this question is π/2 radians.
First we evaluate tan(π/4). The value of tan(π/4) is 1.
So,
sin(π/2) = 1
So,
Thus, we can write:
So, the answer to this question is π/2 radians.
Answer:
about 2.81 km/h
Step-by-step explanation:
It can be useful to draw a diagram.
The lines pointing to due north from points B and P are parallel, so the angle BCP and the bearing of point C from P are the same, 30°. The angle BPC will be the difference of bearings of B and C at P, so is 47-30=17°. This is enough information to solve the triangle using the Law of Sines:
PB/sin(C) = CB/sin(P)
CB = PB·sin(P)/sin(C) = (1200 m)·sin(17°)/sin(30°) ≈ 701.7 m
The speed of the boat is then ...
x = distance/time = (0.7017 km)/(1/4 h) = 2.8068 km/h
