Determine whether the two pairs of numbers are proportional.12.56, 3.14 and 3.14, 0.785

A. No
B. Yes


Answer: B

Mathematics

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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

Mathematics

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

Mathematics

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?

Mathematics

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

Mathematics