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In the number 707B47.B is a prime number.If the number is rounder off to 3sf its value is 708000 what is the biggest value of B

Respuesta :

Answer:  7

The list of single digit primes is {2,3,5,7}. The largest prime is 7, so B = 7 is the largest possible value.

Also note how 707,747 rounds to 708,000 when rounding to 3 significant figures.