Use an identity to write the expression as a single trigonometric function or as a single number.
A. tan 13°
B. sin 13°
C. cos 13°
D. cot 13°
Answer: C
Mathematics
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Convert the improper fraction into a mixed number in lowest terms.
A. 12
B. 
C. 14
D. 13
Mathematics
Convert to rectangular coordinates.
A. (-6
, 6
)
B. (6
, -6
)
C. (6
, 6
)
D. (-6
, -6
)
Mathematics
Use a graphing utility to find or approximate solutions to the equation. If necessary, round your answers to three decimal places.3x2 + 5x - 7 = 0
A. -0.281, -1.386 B. 1.386, 0.281 C. 0.907, -2.573 D. 2.573, -0.907
Mathematics
Solve each problem.Find two numbers whose sum is 450 and whose product is as large as possible.
A. 10 and 440 B. 224 and 226 C. 225 and 225 D. 1 and 449
Mathematics