Use the fact that the trigonometric functions are periodic to find the exact value of the expression. Do not use a calculator.sin 405°
A. 
B. - 
C. - 
D. 
Answer: A
Mathematics
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Make the following conversion between the U.S. and metric systems.4 m2 = 
ft2
A. 13.2 ft2 B. 12 ft2 C. 43.0 ft2 D. 36 ft2
Mathematics
Evaluate the integral.
A. 
x3 cos 9x + 
x2 sin 9x - 
x cos 9x - 
sin 9x + C
B. 
x3 sin 9x + 
x2 cos 9x - 
x sin 9x - 
cos 9x + C
C. 
x3 sin 9x + 
x2 cos 9x - 
x sin 9x - 
cos 9x + C
D. 
x3 sin 9x - 
x2 cos 9x + 
x sin 9x + 
cos 9x + C
Mathematics
Factor.3x2y7 + 9x2y6
A. 3x6y2(y + 3) B. x2y6(3y + 3) C. y + 3 D. 3x2y6(y + 3)
Mathematics
Use the method of bisection to find the root of the equation 
, accurate to two decimal places.
?
A. 
B. 
C. 
D. 
Mathematics