Is (x+9)²equivalent to x² + 81

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.

Select a graph that have an equation with a < 0

Lydia collected two sets of data one set of data shows an outlier. which set has an outlier, and which number is the outlier?