Using a sum or difference identity, write the following as an expression involving functions of ?.sin 
A. sin ?
B. 
cos ? + 
sin ?
C. -cos ?
D. 
cos ? - 
sin ?
Answer: C
Mathematics
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Multiply the rational expressions.
? 
A. 
B. 1
C. - 
D. 
Mathematics
Provide an appropriate response. If you multiply 4 ft times 5 ft the result is 20 square feet. This is a measure of area. If you multiply 4 ft times 5 ft times 2 ft, explain what type of measure results.
What will be an ideal response?
Mathematics
Determine whether the ordered pair is a solution for the linear inequality.(1, 2); 5x + 6y ? -7
A. Yes B. No
Mathematics
Solve and graph the inequality. Give answer in interval notation.-3(4x - 1) < -15x + 9
A. (-?, 2)
B. (-15, ?)
C. (-?, -15)
D. (2, ?)
Mathematics