If am = 21, mb = 9, an = 14, nc = 6, then the triangles are similar by:

a. aa similarity postulate

b. sss similarity theorem

c. sas similarity theorem

d. the triangles are not similar.

Can someone answer it, and plot it, for 20 points and brainliest answer? p. s. they're the same ! : )

Evaluate cos2θ for cosθ = square root of 3/2

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212