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To find the value of the expression in standard form, we need to multiply the numbers together.
(4.8×10^8)*(2.2×10^-6)*(1.2×10^4)
First, multiply the constants: 4.8 * 2.2 * 1.2 = 12.672
Next, add the exponents: 8 + (-6) + 4 = 6
Therefore, the value of the expression is 12.672 × 10^6 in standard form, or 1.2672 × 10^7.
Out of the given answer choices, 0.00088 in standard form.