A man mows his 50 ft by 40 ft rectangular lawn in a spiral pattern starting from the outside edge. After a bit of hard work he stops for a water break, he is 70% done. How wide of a strip has he mowed around the outside edge?

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.

X-intercept=-5 y-intercept=2 the equation of the line is

Ab based on the given diagram, if m_1 = 60° then m 2 = 30 60 90 180