Write the expression in standard form.

A.  - i
B.  + i
C.  + i
D.  + i

Answer: A

Mathematics

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Solve.A force is given as a function of the distance from the origin as   Express the work done by this force as a function of x if W = 0 for x = 0.

A. W = 3 tan x +  - 
B. W = sec3 x +  - 1
C. W = 3 tan x +  
D. W = 3 tan x sec x +  - 

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Mathematics

Add or subtract as indicated. Write your answer in the form a + bi.(8 - 4i) + (4 + 8i)

A. 12 + 4i B. -12 - 4i C. 12 - 4i D. 4 + 12i

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Mathematics

Determine whether the expression is a partial sum of a arithmetic or geometric sequence. Then find the sum.

2.1 + 2.7 + 3.3 + ... + 13.5

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Mathematics

Find the x- and y-intercepts for the equation. Then graph the equation.3x - 8 = y  

A.  , 

B.  , 

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Mathematics