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Mathematics, 21.06.2019 16:30
The average human heart beats 1.15 \cdot 10^51.15â‹…10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65â‹…10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year.how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.
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Mathematics, 21.06.2019 21:30
The measures of the legs of a right triangle are 15m and 20m . what is the length of the hypotenuse
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Mathematics, 21.06.2019 23:00
Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42
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Mathematics, 22.06.2019 00:40
Solve the following system of equations express your answer as an ordered pair in the format (a,b) with no spaces between the numbers of symbols 5x+2y=22
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