Complete the identity.The expression 
is to be the left hand side of an equation that is an identity. Which one of the following four expressions can be used as the right hand side of the equation to complete the identity?
A. tan x - sec x
B. cot x + sin2x
C. sin x + cos x
D. cos x + 1
Answer: C
Mathematics
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Sketch the surface z = f(x,y).f(x, y) = 4x2 + 4y2 + 2
A. 
B. 
C. 
D. 
Mathematics
Express the number as the ratio of two integers.0.55555 . . .
A. 
B. 
C. 
D. 
Mathematics
Find the slope of the line. Interpret the slope in terms of rise and run.
A. 1; The graph rises 1 unit for each unit of run. B. -1; The graph falls 1 unit for each unit of run. C. 0; The rise always equals zero. D. Undefined; The run always equals zero.
Mathematics
Solve the equation and check your solution.
= - 
A. -2, 2 B. 2 C. -2, 0, 2 D. no solution
Mathematics