Find the value of df-1/dx at x = f(a).f(x) = x2 - 4x + 9; a = 4
A. 
B. 
C. 4
D. 
Answer: B
Mathematics
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Find the domain and range of the function.F(t) = 
A. D: (0,?), R: (0,?) B. D: [0,?), R: (-?,?) C. D: (-?,0), R: (-?,0) D. D: (-?,?), R: (-?,?)
Mathematics
Sketch the given surface.16x2 + y2 + z2 = 16
What will be an ideal response?
Mathematics
Convert the mixed number into an improper fraction.-17
A. - 
B. - 
C. - 
D. - 
Mathematics
Solve.In chemistry, the pH of a substance is defined by 
where 
is the hydrogen ion concentration in moles per liter. Find the 
of a sample of lake water whose hydrogen ion concentration, 
, is 
moles per liter. (Round to the
nearest tenth.) A. 6.4 B. 7.3 C. 10.1 D. 8.5
Mathematics