A teenager's heart pumps an average of 7200 L of blood every 24 hours. What is the rate. of change of volume of blood?

Solve the system of equations. y= 2x y= x^2 - 15

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.

Find the distance between (0,5) & (-4,2)