what is the equation of the line of best fit for the following data? round the slope and y-intercept of the line to three decimal places

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

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 multiplicative inverse of 8-12i