Solve the problem.The average height of a boy in the United States, from birth through 60 months, can be modeled by 
where y is the average height, in inches, of boys who are x months of age. What would be the expected difference in height between a child 49 months of age and a child 16 months of age?
A. 48.9 inches
B. 20.3 inches
C. 10.7 inches
D. 8.7 inches
Answer: D
Mathematics
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Add the real numbers. Write any improper fraction as a whole or mixed number where appropriate.-22.4 + (-4.7)
A. 17.7 B. 27.1 C. -17.7 D. -27.1
Mathematics
Provide an appropriate response.Show that f(x, y, z) = ex2 + y2 + z2 is continuous at the origin.
What will be an ideal response?
Mathematics
Find the approximate change in z when the point 
changes from 
to 
.
?
; from 
to 
?
A. ?
B. ?
C. ?
D. ?
E. 
?
Mathematics
Graph the function by starting with the graph of the basic function and then using the techniques of shifting, compressing, stretching, and/or reflecting.f(x) = x3 - 2
A. 
B. 
C. 
D. 
Mathematics