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zhuklara [117]
3 years ago
6

The speed limit on a road in Canada is 70 kilometers per hour. What is this speed in miles per hour? Round your answer to the ne

arest mile per hour.
Mathematics
1 answer:
Stolb23 [73]3 years ago
3 0

Answer:

The speed limit on a road in Canada is 44 miles per hour

Step-by-step explanation:

Given the speed limit on a road in Canada is 70 kilometers per hour.

We have to convert the given speed in miles per hour.

We know,

1 kilometer per hour = 0.62 miles per hours.

70 kilometer per hour = 0.621371 × 70 miles per hours.

70 kilometer per hour = 43.49597 miles per hours.

Thus, The speed limit on a road in Canada is 44 miles per hour

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The sum of three prime numbers (other than two) is always odd.
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Step-by-step explanation:

The statement in the above question is True.

Sum of three prime numbers (other than  two)  is always odd.

Going by Christian Goldbach number theory ,

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 Lets take an example,

  • 3 + 3 + 5 = 11
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  • 5 + 5 + 7 = 17

Later on in 2013  the Mathematician <u>Harald Helfgott</u> proved this theory true for all odd numbers greater than five.

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Which sequence could be described by the explicit definition: t_n=2^n+1t n = 2 n + 1
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Answer:

2. 27

3. Option C. 3, 5, 9, 17, 33, ...

Step-by-step explanation:

2. The sequence is defined by the explicit function t_{n} = 2^{n}  - n

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t_{5} = 2^{5}  - 5 = 32 - 5 = 27 (Answer)

3. The explicit definition is t_{n} = 2^{n}  + 1

Hence, t_{1} = 2^{1}  + 1 = 3

t_{2} = 2^{2}  + 1 = 5

t_{3} = 2^{3}  + 1 = 9

t_{4} = 2^{4}  + 1 = 17

Therefore, the option C is the right sequence. (Answer)

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4 years ago
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8

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