A business uses straight-line depreciation to determine the value y of a piece of machinery over a 10-year period. Suppose the original value (when t=0) is equal to $40,000 and it’s value is reduced by $4000 each year. Write the linear equation that models the value y of this machinery at the end of year t.

Which expression is equivalent to 4 square root 6 divided by 3 root 2

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?