Write the following number in scientific notation 0.00000407​

Organisms that live in the alpine and taiga biomes have developed unique adaptations that aid in their survival. the douglas-fir is a conifer tree that grows in the taiga biome. it has an average height of about 70 feet, and its wood is an important source of lumber.

Which of those sequences is a geometric sequence

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2