Graph the curve over the given interval together with its tangent at the given value of x. Graph the tangent with a dashed line.y = cos(x), -2? ? x ? 2?, x = 
A. 
B. 
C. 
D. 
Answer: D
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Solve the equation. Express your answer in trigonometric form.ix3 + 1 - i
= 0
A. 2(cos ? + i sin ?) for ? = 14°, 86°, 158°, 230°, 302° B. 21/3(cos ? + i sin ?) for ? = 14°, 86°, 158°, 230°, 302° C. 2(cos ? + i sin ?) for ? = 50°, 122°, 194°, 266°, 338° D. 21/3(cos ? + i sin ?) for ? = 50°, 122°, 194°, 266°, 338°
Provide an appropriate response.Simplify: 
- 
Fill in the blank(s) with the appropriate word(s).
Model the problem with a linear equation.The average value of a certain type of automobile was $14,700 in 2008 and depreciated to $7020 in 2012. Let y be the average value of the automobile in the year x, where x = 0 represents 2008. Write a linear equation that models the value of the automobile in terms of the year x.
A. y = -1920x - 660
B. y = -1920x + 14,700
C. y = -1920x + 7020
D. y = - 
x - 7020
Find the midpoint of the line segment with the given end points.(3, -5) and (5, -7)
A. 
B. (-2, 2)
C. 
D. (8, -12)