select 3 expressions that equal to 4 x 10^6
Answer choices:

A. 1.2x 10^9/3 x10^2

B. 40 x 10^5

C. 400,000

D. 4

E. 40^6

F. (2 x 10^8) (2 x 10^-2)

Answer:A, B, and F

Step-by-step explanation:

C only has 5 zeros

D... Uh yeah

E is way over 4,000,000. It's actually 4,096,000,000.

The correct options are A, B and F.

Important information:

In option A,

[tex]\dfrac{1.2\times 10^9}{3\times 10^2}=\dfrac{1.2}{3}\times 10^{9-2}[/tex]

[tex]\dfrac{1.2\times 10^9}{3\times 10^2}=0.4\times 10^{7}[/tex]

[tex]\dfrac{1.2\times 10^9}{3\times 10^2}=0.4\times 10\times 10^{6}[/tex]

[tex]\dfrac{1.2\times 10^9}{3\times 10^2}=4\times 10^{6}[/tex]

In option B,

[tex]40\times 10^5=4\times 10\times 10^{5}[/tex]

[tex]40\times 10^5=4\times 10^{6}[/tex]

In option C,

[tex]400,000=4\times 100,000[/tex]

[tex]400,000=4\times 10^{5}\neq 4\times 10^{6}[/tex]

In option D,

[tex]4\neq 4\times 10^{6}[/tex]

In option E,

[tex]40^6=40\times 40\times 40\times 40\times 40\times 40\neq 4\times 10^{6}[/tex]

In option F,

[tex](2\times 10^8)(2\times 10^{-2}=(2\times 2)(10^8\times 10^{-2})[/tex]

[tex](2\times 10^8)(2\times 10^{-2}=4\times 10^6[/tex]

Therefore, the correct options are A, B and F.

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