Answer:
Step-by-step explanation:
<u><em>Remark</em></u>:
You can simplify moreover if you want to.
Answer:
the second one.
Step-by-step explanation:
(8+4:2)-1*3=(8+2)-1*3=10-1*3=10-3=7;
(8+4):2-1*3=12:2-1*3=6-1*3=6-3=3.
Answer:
Step-by-step explanation:
Let the base camp is point A and boats' locations after two hours are points B and C.
By connecting the three points together we get a triangle ABC with sides:
- AB = 50*2 = 100 km
- AC = 70*2 = 140 km
The angle between AB and AC is:
- 60 + 50 = 110 degrees (opposite directions from south)
We are looking for the distance BC, which can be found by using the law of cosines:
- BC² = AB² + AC² - 2AB*AC*cos ∠BAC
- BC² = 100² + 140² - 2*100*140*cos 110°
- BC² = 39176.56 (rounded)
- BC = √39176.56 = 197.93 km (rounded)
The distance between the boats is 197.93 km.
72% as a decimal is 0.72.
<span>72% as a fraction is 72/100 = 18/25
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