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How many significant figures should be reported in the answer to 8704 m X 3.14 m?
I would generally suggest using the most significant digits in the question as a reflection of the level of detail they want. If they wanted more detail (assuming 3.14 represents the constant pi), then they would have listed pi to the significant digits necessary
How do you convert centimeters to meters move the decimal how many places?
100 cm = 1 m ⇒ to convert cm to m divide by 100 ⇒ move decimal point two digits to the left (inserting zeros if necessary).
How do you substitute digits for A and M so the equation is true MA plus A equals AM?
Unknown
How many 6 digit numbers contain exactly 4 digits?
Zero; all six digit numbers have six digits. Dude.. i m asking 6 digit numbers, containing only 4 different digits..!! e.g.:123412.. with only 2 digits repeated..!! My guess is: 10*9*8*7*4*3 but I'm also guessing that is wrong- sorry!
What are the correct number of significant digits in the sum of 7.68 m and 5.0 m?
Only three significant digits are correct, because 5.0 contains no digit for hundredths, and such a digit would be required to give four significant digits in the answer. Because 7 + 5 equals exactly 12, a third significant digit is gained for the answer. Note in contrast that the sum of 7.68 and 0.50 would properly contain four significant digits.
