Answer these 4 quesstions for brainliest and real answers only please i really need this 37. What is the fifth term when the first term is –2 and the common ratio is?

38. What is the tenth term when the first term is 3 and the common ratio is -1.2?

39. What is the fourth term when the first term is 5 and the common ratio is 6?

40. Suppose a manufacturer invented a computer chip in 1978 that had a
computational speed of s. The company improves its chips so that every
3 years, the chip doubles in speed. What would the chip's speed have
been for the year 2002? Write your solution in terms of s.

yes

step-by-step explanation:

the answer is; biodiversity resulting from few ancestors

adaptive radiation occurs when a population is subjected to a large natural environment with spatial ecological variations. the parts of the population in the different ecologies begin to adapt to their local environments. due to non-random mating across the large populations, this causes the different populations from the large population to speciate within their local environments. they, therefore, diverge to different species sharing a common ancestor.  

hiking down a winding trail.

step-by-step explanation:

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.