Extra points

write a polynomial function of least degree using the given zeros.

-2, multiplicity of 2, -1+√5.

i am able to get to (x + 2)(x + 2) -> x^2+4x+4

what do i do with the last zero?

what i'm thinking is x = -2+√7 ->

x = -4 + 7 ->

x = 3

is x = 3 the last zero?

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.  

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.