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The numbers 3^n -1 are never prime (if n 2>= 2), since they are always even. However, it sometimes happens that (3^n -1) /2 is prime. For example, (3^3 -1) /2 = 13 is prime. a) If n is even, show that (3^n - 1)/2 is always divisible by 4, so it can never be prime. b)Use a similar argument to show that if n is a multiple of 5 then (3^n - 1)/2 is never a prime.
Write the claim mathematically and identify H0 and Ha (b) Find the standardized test statistic Z and its corresponding area.
Among the N = 18 doctors in a healthcare group, A=7 of them are board certified. A team of n= 4 doctors is going to be selected at random to staff a new clinic. Use X to represent the number of doctors selected into the team who are board certifie..
Four congruent quarters circle are drawn inside square of side length four centimeters f ind the shaded area
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Which of the following can be solved by using a system of equations? Laura and Mark went to the movies and spent $29 on movie tickets and snacks. Mark paid $10 more than Laura. How much did each spend?
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