Math

1. The length of a micrometer is approximately 0.00003937 inch. How would you express this in scientific notation?
A. 0.3937 * 10^-4 **
B. 3.937 * 10^-5
C. 39.37 * 10^-6
D. 3937 * 10^-8

2.Write each number in either scientific notation or standard notation.
a- The diameter of Mercury is 4879 kilometers.
b- The distance from Saturn to the Sun at its closest point is about 8.4044 * 10^8 miles.
c- The diameter of a platelet is about 3 * 10^-6 meter.

My Answers:
a- 4.879 * 10^3 = 4,879
b- 84,044
c- 3,000,000

I need help,
thanks

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  1. a. agree
    b. 10^8 means you shift the decimal point to the right 8 places. The value is much larger.
    c. 10^-6 means you shift the decimal point to the left 6 places. The value is much smaller.

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  2. @psydag so whats it equal?

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