Which of the following are valid witnesses to show that 10n-1 is (n)? O C=1, k=100 O C=10, k=10 O C=100, k=1 C=1000, k=0 O None of the above

Q: The mean weight of male nurses working at a local hospital is equal to 170 lbs. Express the null and…

A: Null and alternative hypotheses: The hypothesis which is tentatively fixed up under and tested for…

Q: O 124 O 101 O24 O 20 20. If an = 4(5)-1, what is S3?

A: Given: an=4(5)n-1 We are required to find: S3

Q: The number of permutations of n elements taken rat a time is denoted by nPr and is computed by or…

A: The number of permutations of n elements taken r at a time is given by nPr where nPr is given by,

Q: Q.7) In a party 25 people shake hands to each other (only once). How many n(n-1) handshakes will…

A: Given that  Number of people shake hands each other=25 To find  Number of shake hands will occur.

Q: 10 -1 o -1 If A =: 1 1 8 in null(A)? is v = 1 v is in null(A). O v is not in null(A).

A: We find whether A is in null(A).

Q: Consider the following. Find Av. Av = A = 10-1 1 1 1 = 7 -1 Complete the following statement. Since…

A: Given that A is a 2X3 matrix and v is 3X1 vector so product is possible. The null space of A,…

Q: In how many ways can we select 6 people out of 10, of which a particular person is not included?…

A:

Q: 1. Let n E N. Prove that n and nº have the same last digit.

A: See the attachment

Q: ek 5. Let a = pt¹ …pºk, and b = pf¹ ...pf, where p; are prime numbers, and ei, fi ≥ 0. Show that…

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Q: 3 Let A =2E -1 0 B = 0 2 If BXT = A, then X= Select one: -3 0 a. 1 -3 O . 1 -3 O d. None of these 1)

A:

Q: Prove that 3 | 4" – 1 where n E N.

A: To prove 3|4n -1  That is 3 divides 4n -1 for every natural number n.

Q: How many positive integers n less than or equal to 11,347 satisfy d(n) 1 (mod 2)?

A: We need to find a number of positive integers n≤11347 such that d(n)≡1(mod 2) i.e., , k∈Z.So, we…

Q: Consider the following statement -pV (¬(pAq)] Which of the following alternatives is its…

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Q: If A = 27 + 37 and B = 7+27, what is A + B ? c. a. 37 +5j b. 47+45 7+7 d. 57 +37

A: Given Vectors:- A→=2i+3j    and B→=i+2j