(6.3x10^3)x(7x10^-5) in standard form please answer asap

Mathematics

1 answer:

Andre45 [30]3 years ago

7 0

Answer:

0.441

Step-by-step explanation:

$(6.3 \times 10^3) \times (7 \times 10^{-5} ) \\ \\ = 6.3 \times 7 \times 10^3\times 10^{-5} \\ \\ = 44.1 \times {10}^{3 - 5} \\ \\ = 44.1 \times {10}^{ - 2} \\ \\ = 0.441$

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Sokhem is Chanda's older brother.In six more years Sockem will be twice chendas age now.In six more years the sum of their ages

const2013 [10]

Answer:

Sokhem: 30
Chanda: 18

Step-by-step explanation:

Let c represent Chanda's age now. In six years, the Sokhem's age will be 2c. At that time, the sum of their ages is ...

(c+6) +2c = 60

3c = 54 . . . . . . . . subtract 6, collect terms

c = 18 . . . . . . . . . . divide by 3

Chanda is 18, Sokhem is 30.

_____

<em>Check</em>

In 6 years Chanda will be 24, Sokhem will be 36. The sum of their ages then will be 24+36 = 60. Since Chanda is 18 now, Sokhem's age then will be 2 times Chanda's age now.

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Answer:

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Step-by-step explanation:

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