The answer is 36. You can multiply top and bottom by 3, or cross multiply and divide.
Answer:
534,070.75 miles
Step-by-step explanation:
The circumference formula is 
or 
.
But since we're given the diameter, 170,000, all we have to do is multiply it by 
.
Answer:
Step-by-step explanation:
time to cross will be the distance divided by the velocity in that direction.
a) t = d/v = 45/2.75 = 16.363636... 16.4 s
In the same time that the otter is swimming cross stream, the stream is also moving perpendicularly at its own pace.
b) d = vt = 2.5(16.36) = 40.9090... 40.9 m
As velocity is a vector, An observer on the bank would see the velocity as the vector addition of the cross stream and down stream velocities
c) v = √(2.75² + 2.5²) = 3.716517... 3.72 m/s magnitude
θ = arctan2.5/2.75 = 42.2736... 42.3° downstream of a line straight across
Answer:
r = 2
Step-by-step explanation:
(2-3)/(6-5)
= -1/1
= -1
