Identify ? and ? in the following expression which is the right side of the formula for cos (? - ?).cos (165°) cos (45°) + sin (165°) sin (45°)
A. ? = -165°, ? = 45°
B. ? = 45°, ? = 165°
C. ? = - 45°, ? = 165°
D. ? = 165°, ? = 45°
Answer: D
Mathematics
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A. Does not exist B. 2 C. 0 D. 4
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Write the expression as a sum, difference, or multiple of logarithms.log2
A. (6 log2x)(9 log2y) - log23 B. 6 log2x - 9 log2y - log23 C. 6 log2x + 9 log2y - log23 D. 6 log2x + 9 log2y + log23
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Solve. Write your answer in simplest form.There were 21
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yards of wire from the spool, how many yards were left?
A. 18
yards
B. 17 yards
C. 16
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D. 17
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Mathematics
Simplify. Assume that variables can represent any real number.
A. z - 3 B. ?z? - 3 C. ?z - 3? D. -z + 3
Mathematics