Question

Сравните числа: а) 5,6×10⁴ и 6,5×10⁴

б) 1,7×10^-² и 1,7×10^-⁴
в) 4,2×10^-³ и 4,1×10⁴

Answer 1

Объяснение:

а)

$5.6 \times 10 {}^{4} < 6.5 \times 10 {}^{4} \\ 5.6 \times 10 {}^{4} = 5.6 + 10000 = 56000 \\ 6.5 \times 10 {}^{4} = 6.5 \times 10000 = 65000$

б)

$1.7 \times 10 {}^{ - 2} 1.7 \times 10 {}^{ - 4} \\ 1.7 \times 10 {}^{ - 2} = 0.017 \\ 1.7 \times 10 {}^{ - 4} = 0.00017$

в)

$4.2 \times 10 {}^{ - 3} < 4.1 \times 10 {}^{4} \\ 4.2 \times 10 {}^{ - 3} = 0.0042 \\ 4.1 \times 10 {}^{4} = 41000$