Mathematics: Work out (5X10^3) x (9X10^7) answer in standard form plz

Work out (5X10^3) x (9X10^7) answer in standard form - id5103910710096691, sierravick123owr441

Destinysills9325

14.02.2022

4.5×10¹¹

$(5 \times 10 {}^{3} ) \times (9 \times 10 {}^{7} )$

i) use the commutative property to rearrange the terms: a+b = b+a

$(5 \times 9) \times (10 {}^{3} \times {10}^{7} )$

ii) multiply the number in the 1st bracket

$45 \times ( {10}^{3} \times 10 {}^{7} )$

iii) multiply the 2nd bracket by adding their exponents

$45 \times 10 {}^{3 + 7}$

$45 \times 10 {}^{10}$

iv) write the answer in standard form

$4.5 \times 10 {}^{10 + 1}$

$4.5 \times {10}^{11}$

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pierrezonra

14.02.2022

4.5x10^11

Step-by-step explanation:

= (5x10^3) x (9x10^7)

= 4.5x10^11

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cadence58

20.01.2021

B. It is not true. The point at x=0 is not part of a solution for the piece wise function.

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