What is the value of z for the equation fraction 1 over 3z = −fraction 5 over 6 fraction 1 over 6z? 5 2 −2 −5

What is the order of operations for 2 + (3 - 9) ÷ -3 · 4 in number order 1. subtraction 2. division 3. addition 4. multiplication

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

How can you check that you have correctly converted frequencies to relative frequencies?