Is y=arcsec(1) equivalent to 0? Thanks!

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.

Which of the following are accepted without proof in a logical system? check all that apply.

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.