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8. Multiply the following numbers using scientific notation: (2 x 10^3)(2 x 10^4).


9. Divide the following numbers using scientific notation: (4 x 10^2)/(1 x 10^3)

10. Perform the following calculation: (1 x 10^2)(2 x 10^3)/(1 x 10^2)

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Answer:

Question 8

Multiply the following numbers using scientific notation: (2 x 10^3)(2 x 10^4).

(2 x 10^3) = 2*10*10*10 = 2000

(2 x 10^4) = 2*10*10*10*10 = 20000

2000*20000

=40 000 000

= [tex]4 * 10^{7}[/tex]

Question 9

Divide the following numbers using scientific notation: (4 x 10^2)/(1 x 10^3)

(4 x 10^2) = 4*10*10 = 400

(1 x 10^3) = 1*10*10*10= 1000

400/1000 = 0.4

=[tex]4*10^{-1}[/tex]

Question 10

Perform the following calculation: (1 x 10^2)(2 x 10^3)/(1 x 10^2)

(1 x 10^2) = 1*10*10= 100

(2 x 10^3) = 2*10*10*10 =2000

100*2000 = 200 000

(1 x 10^2) = 1*10*10 = 100

200 000/100 = 2000

=[tex]2*10^{3}[/tex]

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