Find the numerical value of the expression for 
and 
A. a) 
b) 
B. a) 
b) 
C. a) 
b) 
D. a) 
b) 
Answer: C
Mathematics
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Name the property used to go from step to step indicated by an a), b), c), or d).
What will be an ideal response?
Mathematics
Verify the identity.cos 
= -sin x
What will be an ideal response?
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Solve the problem.A triangular lake-front lot has a perimeter of 1900 feet. One side is 300 feet longer than the shortest side, while the third side is 400 feet longer than the shortest side. Find the lengths of all three sides.
A. 500 ft, 800 ft, 900 ft B. 500 ft, 500 ft, 500 ft C. 100 ft, 200 ft, 300 ft D. 400 ft, 700 ft, 800 ft
Mathematics
Convert to a mixed numeral.
A. -7
B. -8
C. -7
D. -6
Mathematics