Find the length of the curve.The cardioid r = 6(1 - sin ?)
A. 54
B. 48?
C. 48
D. 54?
Answer: C
Mathematics
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Solve.How many 4-letter codes can be formed with the letters 
with repetition?
A. 336 B. 56 C. 4096 D. 240
Mathematics
Solve the problem.A certain noise measures 109 decibels in loudness. If the intensity is multiplied by 100, how many decibels will the new noise measure?
A. 111 dB B. 129 dB C. 218 dB D. 10,900 dB
Mathematics
For what x is the function defined?
Mathematics
Translate to a proportion and solve. Round to the nearest hundredth, if necessary.0.3 is 10% of what number?
A. 0.03 B. 30 C. 0.3 D. 3
Mathematics