Determine whether the two pairs of numbers are proportional.12.56, 3.14 and 3.14, 0.785
A. No
B. Yes
Answer: B
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Perform the indicated operations and simplify.69.5 - 2.2(0.77 + 6) + (-1.3)2
A. 56.296 B. 75.496 C. 52.916 D. 82.696
Write as the sum and/or difference of logarithms. Express powers as factors. log8
A. 
log8r ? 
log8s ÷ 
log87
B. 
log8r + 
log8s - log87
C. 
log8rs - 
log87
D. 
log8r + 
log8s - 
log87
Use a calculator to complete the following table. (Be sure your calculator is in degree mode.) Round all answers to four digits past the decimal point. If you have a graphing calculator with table-building capabilities, use it to construct the tables. xsin xcsc x0°____________________30°____________________45°____________________60°____________________90°____________________
What will be an ideal response?
Solve the problem.Use the formula 
where the loudness of a sound in decibels is determined by I, the number of watt/m2 produced by the soundwave, and 
A certain noise produces 
of power. What is the decibel level of this noise? Round to the nearest decibel.
A. 206 decibels B. 80 decibels C. 9 decibels D. 90 decibels