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Joined: 20 Feb 2017
Posts: 2508
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Cost is expressed by the formula tb^4. If b is doubled, by what factor
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11 Feb 2021, 07:19
11 Feb 2021, 07:19
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Cost is expressed by the formula \(tb^4\). If b is doubled, by what factor has the cost increased?
(A) 2
(B) 6
(C) 8
(D) 16
(E) \(\frac{1}{2}\)
(A) 2
(B) 6
(C) 8
(D) 16
(E) \(\frac{1}{2}\)
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Cost is expressed by the formula tb^4. If b is doubled, by what factor
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11 Feb 2021, 10:20
11 Feb 2021, 10:20
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GeminiHeat wrote:
Cost is expressed by the formula \(tb^4\). If b is doubled, by what factor has the cost increased?
(A) 2
(B) 6
(C) 8
(D) 16
(E) \(\frac{1}{2}\)
(A) 2
(B) 6
(C) 8
(D) 16
(E) \(\frac{1}{2}\)
C1 = \(tb^4\)
C2 = \(t({2b})^4\) = \(16tb^4\) = 16C1
So, 16 times
Hence, option D
Re: Cost is expressed by the formula tb^4. If b is doubled, by what factor
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21 Jun 2022, 19:53
21 Jun 2022, 19:53
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