A point on the end of a tuning fork moves in simple harmonic motion described by
?
?
Find ? given that the tuning fork for middle C has a frequency 270 of vibrations per second.
?
A. 
?
B.
?
C.
?
D.
?
E.
?
Answer: C
Mathematics
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Find all angles in [0°, 360°) that satisfy the equation.
sec 2? = 2
A. {0°, 120°, 180°, 240°} B. {30°, 90°, 150°, 270°} C. {15°, 165°, 195°, 345°} D. {105°, 165°, 285°, 345°}
Mathematics
Perform the indicated operation.(4a5 - 3a3) + (8a5 + 9a3)
A. 18a8 B. 12a10 + 6a6 C. 12a5 + 6a3 D. 18a16
Mathematics
Divide and simplify.
A. -4 - 25x3
B. 20x6 + 
C. -4 + 
D. -4 + 5x3
Mathematics
Find the sum.2.0464 + 2.5899
A. 4.7363 B. 4.6353 C. 4.6263 D. 4.6363
Mathematics