4 years ago

Multiply the following fractions. Reduce your answer to lowest terms. 3/7 4/5

Mathematics

2 answers:

dmitriy555 [2]4 years ago

6 0

3/7 * 4/5 = (3*4) / (7*5) = 12 /35 (answer)

kondor19780726 [428]4 years ago

3 0

The product of 3/7 • 4/5 is 12/35

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frozen [14]

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7 0

3 years ago

(8.96 x 10^4) (7.97 x 10^9)/2.54 x10^6

viktelen [127]

$\text{Scientific notation:}\\\\a\cdot10^k\\\\\text{where}\ 1\leq a$

$\dfrac{(8.96\cdot10^4)(7.97\cdot10^9)}{2.54\cdot10^6}=\dfrac{(8.96)(7.97)}{2.54}\cdot\dfrac{(10^4)(10^9)}{10^6}\\\\\text{Use}\ a^n\cdot a^m=a^{n+m}\ \text{and}\ \dfrac{a^n}{a^m}=a^{n-m}\\\\=\dfrac{71.4112}{2.54}\cdot10^{4+9-6}=\dfrac{7141.12}{254}\cdot10^7\approx28.11\cdot10^7\\\\=2.811\cdot10\cdot10^7=2.811\cdot10^{7+1}\\\\=\boxed{2.811\cdot10^8}$