17.
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Given that 100.48 = x, 100.70 = y and xz = y², then the value of z is close to
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A. 1.45
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B. 1.88
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C. 2.9
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D. 3.7
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Answer
xz = y²
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<=> (10 0.48 )z
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<=> (100.70)2
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= (10 0.48z)
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= (10(2×0.70))
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= 101.40
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0.48z = 1.40
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z= 140/48
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= 35/12
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= 2.9(approx.).
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Title : Surds And Indices Q17
Description : 17. Given that 10 0.48 = x, 10 0.70 = y and x z = y² , then the value of z is close to A. 1.45 B. 1.88 C. 2.9...
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