Using the given information, the width of the river is 505.96 m
<h3>Bearing and Distances</h3>
From the question, we are to determine the width of the river
Consider the given diagram,
Let F be the first position of the biker
S be the second position
and C be the position of the church
First, we will determine the distance covered from F to S
Speed = 160m/min
Time = 4 minutes
Using the formula,
Distance = Speed × Time
Distance covered = 160 × 4
Distance covered = 640 m
That is, /FS/ = 640 m
Now, consider ΔFSC
∠F = 90° - 70° = 20°
∠S = 90° + 56° = 146°
and ∠C = 180° - 20° - 146° = 14°
By the Law of Sines

∴ 

/FC/ = 1479.33 m
Now,
By SOH CAH TOA

NOTE: d is the width of the river
∴ d = /FC/ × cos70°
d = 1479.33 × cos70°
d = 505.96 m
Hence, the width of the river is 505.96 m
Learn more on Bearing and distances here: brainly.com/question/19351991
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Answer:
1. 180
2. 300
3. 480
Step-by-step explanation:
1. Since 30% of 600 (or 0.3 * 600) = 180, the 1st blank is 180.
2. 50% of 600 (also easy to just think of one half {1/2}) = 300
3. Because 180 + 300 = 480
hope this helps:)
Answer:
The first two options (There are infinite solutions, each solution is negative)
Step-by-step explanation:
They can't be positive and no range is specified
30 x 2
15x2
5x2
2x2x3x5
2^2x3x5
Answer:
C
Step-by-step explanation:
The correlation coefficient is too weak to show anything