Perform the indicated operation using trigonometric form. Leave answer in trigonometric form.
A. 
?
B.
?
C.
?
D.
?
E.
?
Answer: D
Mathematics
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Simplify by combining like terms.9y + 2 - 2y + 7
A. 11y + 9 B. 7y + 9 C. 7y - 5 D. 16y
Mathematics
Provide an appropriate response.Simplify: 
+ 
Fill in the blank(s) with the appropriate word(s).
Mathematics
Write the polynomial that represents the perimeter of the figure.
A. 2x2 - 7x + 4 B. 2x2 + 13x + 6 C. 2x2 - 5x + 4 D. x2 - 7x + 4
Mathematics
Find the radius or diameter as requested.Find the diameter.
A. 0.9 cm B. 5.652 cm C. 10.17 cm D. 3.6 cm
Mathematics