In “counting subsets”, we saw that the total number of subsets of a set s containing n elements is equal to 2n. however, if we intend to count the total number of subsets of s having a fixed size k, then we use the combination statistic c(n, k), also written (nk). given: positive integers n and m with 0≤m≤n≤2000. return: the sum of combinations c(n, k) for all k satisfying m≤k≤n, modulo 1,000,000. in shorthand, ∑nk=m(nk).

.19875994384

step-by-step explanation:

1699/ 8548

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.  

x =-.20752

step-by-step explanation:

4^(x+2)=12

4^(x+2)=12

take the log base 4 on each side

log 4 (4^(x+2) = log 4(12)

we know log b(a^y) = y log b (a)

(x+2) log 4(4) = log 4 (12)

x+2 = log 4 (12)

we know   logb c = loga c/loga b

we want to convert to base 10   so a = 10

by default, we do not write the 10   c = 4   and b = 10

log4 10 = log 12/log 4

log4 10 = log 12/ log 4

x+2 = log 12/ log 4

subtract 2 from each side

x +2 -2 = log 12/ log 4 -2

x = 1.79248125 -2

x =-.20752

the answer would be 44.79

plz mark brainliest

step-by-step explanation: