Graph the function.f(x) = e-x 
A. 
B. 
C. 
D. 
Answer: C
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Write a word name for the number in the sentence.Repeating patterns in numbers like 400,040,004,000 held mystical significance for most of the members of the village.
A. Four hundred billion, forty million, four thousand B. Four hundred million, forty thousand, four C. Four billion, four hundred million, forty thousand D. Forty billion, four hundred million, four
Find an equation for the ellipse described.Center (0, 0); major axis vertical with length 8; length of minor axis is 6
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Express the given function H as a composition of two functions f and g such that H(x) = (f ? g)(x).H(x) = 
+ 4
A. f(x) = x + 4, g(x) = 
B. f(x) = 
, g(x) = 
+ 4
C. f(x) = x, g(x) = 
+ 4
D. f(x) = 
, g(x) = 4
The mean is sometimes called the arithmetic mean to distinguish it from other possible means. For example, a different mean, called the harmonic mean (H.M.), is used to average speeds. This mean is defined to be the sum of the reciprocals of all scores divided into the number of scores. For example, the harmonic mean of the numbers 4, 5, 6, 6, 7, 8 is
?
?
Find the arithmetic mean and the harmonic mean of the numbers 2, 2, 4, 4, 7, 8, 8, 9, 9, and 10.
?
Round your answers to the nearest hundredth.
?
A. 
B. 
C. ?
D. ?
E. ?