Write the product as a sum or difference containing only sines or cosines.sin 
cos 
A. 
sin cos(9?)
B. 
[cos(10?) - sin(8?)]
C. 
[sin(5?) - sin(4?)]
D. 
[cos(5?) + sin(4?)]
Answer: C
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Simplify, then write in descending order.-4m8 + 5m3 - 9m2 + 9m8 - 15m3
A. 5m8 + 10m3 - 9m2 B. 5m8 - 10m3 - 9m2 C. 5m8 - 10m3 + 9m2 D. 24m13
Determine the inequality which matches the calculator graph. Do not use your calculator. Instead, use your knowledge of the concepts involved in graphing inequalities.
A. y ? -3x - 2 B. y ? 3x - 2 C. y ? 3x - 2 D. y ? -3x - 2
Find the standard form of the complex number 
. Round values to the nearest hundredth.
?
A. 9.66 - 2.59i B. ?8.66 + 5i C. ?-9.66 - 2.59i D. ?-8.66 - 5i E. ?9.66 + 2.59i
Solve.Find the area of a rectangle with a length of 19 inches and a width of 20 inches.
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