Elizabeth's bathroom is 8 feet by 6 feet . She is laying Square tiles with a side length of 3 inches. How many tiles does she need ?

In the surface area formula for cylinders which expressionrepresents the lateral area

Aline on the wall and a line on the floor are skew. always, sometimes, or never?

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.