# Question 5 Scientific notation is a way of writing numbers that are too big or too small to be conveniently written in decimal form. For decimal numbers, scientific notation has the form a \times 10^ba×10 b where aa is a number in the range 1\le |a| \lt 101≤∣a∣<10 and bb is an integer. The number aa is the mantissa while the integer bb is the exponent. The mantissa is usually expressed using the same number of significant digits as used in the original decimal form. What is the mantissa for 0.004001000.00400100 when expressed in scientific notation?

## Home » Question 5 Scientific notation is a way of writing numbers that are too big or too small to be conveniently written in decimal form. For decimal numbers, scientific notation has the form a \times 10^ba×10 b where aa is a number in the range 1\le |a| \lt 101≤∣a∣<10 and bb is an integer. The number aa is the mantissa while the integer bb is the exponent. The mantissa is usually expressed using the same number of significant digits as used in the original decimal form.What is the mantissa for 0.004001000.00400100 when expressed in scientific notation?

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