Some types of algae have the potential to cause damage to river ecosystems. suppose the accompanying data on algae colony density (y) and rock surface area (x) for nine rivers is a subset of data that appeared in a scatterplot in a research paper in a scientific journal. x 50 55 50 79 44 37 70 45 49 y 152 53 22 35 38 166 13 185 25 (a) compute the equation of the least-squares regression line. (round your numerical values to five decimal places.)

On the way home from visiting his family, vincent’s plane cruised at an altitude of 3.2 × 104 feet. he had heard that a man named felix baumgartner skydived from an altitude of 1.28 × 105 feet. vincent wants to know how much higher felix went on his skydiving trip. question 1 you have already seen how adding numbers works in either scientific notation or standard notation. but can you subtract numbers in scientific notation and get the same results as subtracting in standard notation? to find out, first solve vincent’s problem in standard notation. part a write the cruising altitude of vincent’s plane in standard notation.

If 25% of y is 30, what is 60% of y?

Nikolas calculated the volume of the prism. his work is shown below.