Question 2 (1 point) Mrs. Dawson's 6th period last test average was a 71% with a standard deviation of
3%. What probability of her students scored between a 74% and an 80%?

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 expressions is equal to 2x^2+8

Can someone me out here and the tell me the greatest common factor