1) Distance between Earth and Moon 18 304,000,000
m/sec re
ii) The speed of light in vacuum is 3,00,000,000 m/sec = 3 *
wa s express the following number in index form as power of 10 (takino
us places of decimal)
( 1) 978 ii) 159217
4: 1 et's form the numbers from their expanded form given below -
C 3 10'+ 2 102 + 7 * 10+2 ) 2 x 103 + 3 × 10 + 5
ui) 8 * 104 + 2 x 103 + 3 * 102 + 6 iv) 9 x 104 + 5 x 109 + 6 x 102 +7
5. Let's simplify and express each of them in power form 3x 72 x 110
(i) 23 x 39 x 16
(ii) [(62)3 64] - 6' ((111)
21 X7
3 x 32
Gv 45 x ab
28 x x
(v) (39 + 2º) * 50 (vi)
45 * ab? (b +0)
76
43 x
1
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5
Answers:
1) Distance between Earth and Moon = 1.8304 × 10^(10) km
2) The speed of light in vacuum = 3 × 10^(8) m/sec
Answered by
0
Answer:
let the number be x
(-6)^-1 * x = ( 9 )^-1
= > 1 / 6 * x = 1 / 9
= > x = 1 / 3 x ( - 2 ) / 1
= > - 2 / 3 .
Step-by-step explanation:
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