Achemistry book comprises of two section: organic and non-organic in the ratio 2: 8. how much of each type of content will be needed to make a book of 400 pages?

The average human heart beats 1.15 \cdot 10^51.15⋅10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65⋅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.

Asphere has a diameter of 10 in. what is the volume of the sphere?

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