The distance between new york city, new york and los angeles, california is approximately 4485 kilometers. what is the distance between these two major cities in miles? use the conversion equivalency of 1 mile = 1.609 kilometers and round to the nearest mile.

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.

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?

Which radical expression is a rational number? a. √ 360 b. √ 644 c. √ 225 d. √ 122