Vishwanath
Monday, February 18, 2013
17. | Given that 100.48 = x, 100.70 = y and xz = y², then the value of z is close to
|
| A. 1.45 | B. 1.88 | |
| C. 2.9 | D. 3.7 | |
Answer
xz = y² | <=> (10 0.48 )z |
<=> (100.70)2 |
= (10 0.48z) |
= (10(2×0.70)) |
= 101.40 |
0.48z = 1.40 | z= 140/48 |
= 35/12 |
= 2.9(approx.). |
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 D. 3.7 Answer x z ...
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