Answer:
75°
Step-by-step explanation:
firstly, use the pythagoras theorem
Square root(8²-2²) = 7.75
Then, use sine
sine A= 7.75/8
Sine A=0.9688
A= (sine power of -1) x (0.9688)
A=75.63
Answer:
36.
Step-by-step explanation:
In the scale of the model, it says 1:36, which means that one tractor-trailer is the size of 36 models.
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<em><u>If you need more help or explanation, follow up in the comments. :P</u></em></h2>
Answer:
0.6 km/hr
Step-by-step explanation:
Speed downstream: 13/5= 2.6 km/hr
Speed upstream: 7/5= 1.4 km/hr
Therefore, Velocity of current is: 1/2 (2.6-1.4) km/hr = 1/2(1.2) km/hr
That's 6! (factorial). It's 720.