Answer:
1.486×10⁸
Step-by-step explanation:
Recognize that the number is equivalent to 1.486 × 100,000,000. The factor on the right is 1 with 8 zeros following, so is 10⁸. That means the number is ...
... 1.486 × 10⁸
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It helps to be familiar with "expanded form using exponents".
Consider the number in the attachment. Using exponents, that number in expanded form is ...
6×10⁹ +7×10⁸ +9×10⁷ +3×10⁶ +5×10⁵ +9×10⁴ +3×10³ +6×10² +8×10¹ +6.×10⁰ +5×10⁻¹ +2×10⁻² +6×10⁻³ +1×10⁻⁴ +3×10⁻⁵ +0×10⁻⁶ +7×10⁻⁷
You can see that the exponents of 10 count up going to the left of the decimal point, and count down going to the right.
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When you express a number in scientific notation, you express the most significant digit the way it would be written in expanded form using exponents (as here). The digits to the right of that are then put behind a decimal point.
The most significant digit of your number has the place value of "hundred millions" so would be written as 1×10⁸. The remaining digits follow a decimal point, so the number in scientific notation is ...
... 1.486×10⁸
