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d1i1m1o1n [39]
3 years ago
9

How do you round 47 to the nearest ten

Mathematics
2 answers:
ad-work [718]3 years ago
8 0

Basically, for example, the last digit is over 4 then you round it to 50.

41-44 are considered rounded to the bottom, and 45-49 are rounded to 50.

musickatia [10]3 years ago
4 0

the nearest ten would be 50, Just go up till the next 10,20,30,40,50,60,70.etc. all of them are by tens

40-44 is going down 45-49 is going up


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Answer:

The angle between [A_F] and the base of the cone = 68.2°

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Step-by-step explanation:

The given parameters are;

The height of the cone = 5 m

The base radius of the cone  = 2 m

The angle which the A\hat OC = 120°

Therefore, we have;

The angle between [A_F] and the base of the cone = The angle between [CF]  and the base of the cone

The angle between [CF]  and the base of the cone = tan⁻¹(5/2) = tan⁻¹(2.5) ≈ 68.2°  

∴ The angle between [A_F] and the base of the cone = The angle between [CF]  and the base of the cone = 68.2°

The angle between [A_F] and the base of the cone = 68.2°

The area of the base of the cone = π × r² = π × 2² = 4·π ≈ 12.57

The area of the base of the cone ≈ 12.57 m².

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