Let x be a number. Translate the English phrase or sentence into a mathematical expression. 9 less than a number
A. 9 ÷ x
B. 9 - x
C. x - 9
D. x + 9
Answer: C
Mathematics
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If k is negative, then the power function 
is a decreasing function for positive values of ?x.
Answer the following statement true (T) or false (F)
Mathematics
Provide an appropriate response.Graph f(x) = cos-1 
and g(x) = tan-1 
. Explain why the graph looks like it does.
What will be an ideal response?
Mathematics
Convert the units using two or three unit fractions.9 yd = 
in.
A. 27 B. 108 C. 162 D. 324
Mathematics
Find the union or intersection as indicated.Find A ? B if A = {x|x ? -2} and B = {x|x < 5}
A. {x|x ? -2} B. {x|-2 ? x < 5} C. ? D. {x|x < 5}
Mathematics