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3. Express each of the following in the form k * 10 ^ n; (1 |
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Answer» Answer: plz mark me as brilliant Step-by-step explanation: GIVEN : \frac{1.25 \times 10^7}{5 \times 10^3}5×1031.25×107 (1.25 × 10raise to the POWER 7) ÷ (5× 10 raise to the power 3) To find : Express in k × 10 raise to the power n ( 1 < k < 10) Solution: \frac{1.25 \times 10^7}{5 \times 10^3}5×1031.25×107 = \frac{1.25 \times 10^{(4+3)}}{5 \times 10^3}5×1031.25×10(4+3) USING nᵃ⁺ᵇ = nᵃ × nᵇ = \frac{1.25 \times 10^4 \times 10^3}{5 \times 10^3}5×1031.25×104×103 = \frac{1.25 \times 10^4 }{5 }51.25×104 = \frac{1.25 \times 10^3 \times 10 }{5 }51.25×103×10 = 1.25 X 10³ * 2 = 5 * 10³ \frac{1.25 \times 10^7}{5 \times 10^3}5×1031.25×107 = 5 * 10³ Learn more: In this question x^y STANDS for x raised to the power y .for example 2 ... compare 7 multiply 10 raise to power minus 6 and 129 multiply 10 ... |
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