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Which of the following is equal to 5^k*7^(k-1)?
Which of the following is equal to 5^k*7^(k-1)?
Quiz
(A) 5*35^(k-1)
(B) 5*35^(k-1)
(C) 35^k
(D) 5*35^k )
(E) 35^(2k-1)
Answer/Solution
5*35^(k-1)
Steps/Work
5^k*7^(k-1) = 5*5^(k-1)*7^(k-1) = 5*35^(k-1)
The answer is A.