A group of 80 students in a collage are surveyed. They are asked which one of the Spanish or french they are studying.71 of the students surveyed studies at least one of the two languages complete the Venn diagram

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 ordered pair (c, d) is a solution to the given system of linear equations- c+2d=13 -9c-4d=-15

The parabola opens: y=√x-4 (principal square root) up down right left