Express the number in scientific notation.0.000315
A. 3.15 × 10-3
B. 3.15 × 104
C. 3.15 × 10-4
D. 3.15 × 10-5
Answer: C
Mathematics
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Use < or > to make a true statement.6 ? 5
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The graph of the function f is shown below. Match the function g with the correct graph.g(x) = -f(x) - 4
A. 
B. 
C. 
D. 
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Finish the proof.Prove that 
tan x = sec2 x.
A. 
(tan x) = 
= 
= 
= 
= sec2 x
B. 
(tan x) = 
= 
= 
= 
= sec2 x
C. 
(tan x) = 
= 
= 
= 
= sec2 x
D. 
(tan x) = 
= 
= 
= 
= sec2 x
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