1. Use Gauss's Method to sum the numbers from 7 - 89 2.Use Euclid's Method to sum the sequence 1, 5, 25, 125, 625, 3125

step-by-step explanation:

given that ab is divided into equal parts as

ac, cd, de, ef, fg, gh, hi, ib.

from this we find that f is the midpoint of ab.

so using mid point formula we find

f = (3,7)

similarly considering fb, we get

h = mid point of fb = ((6,6) and g, mid point of fh is

g = (9/2, 13/2)

i is mid point of hb

so i =(15/2,11/2)

the answer is  

a.

4,624π mm2

step-by-step explanation:

if im not mistaking its

step-by-step explanation:  

sample answer: you can determine whether each element of the domain is paired with exactly one element of the range. for example, if given a graph, you could use the vertical line test; if a vertical line intersects the graph more than once, then the relation that the graph represents is not a function.