Mathematics, 11.06.2021 22:00 cadenm81
26. If I reverse the digits of a two-digit positive
integer and subtract the resulting integer from
the original integer, the difference is 36. The
difference between the two digits is
A) 4 B) 6 C) 8 D) 9
Answers: 2
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Mathematics, 21.06.2019 18:40
Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.
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Mathematics, 21.06.2019 19:40
Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.
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26. If I reverse the digits of a two-digit positive
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