The water contains no larvae at temperatures of -10 degrees Celsius and 20 degrees Celsius.
Answer:
x = 6
Step-by-step explanation:
The equation we need to solve is:

We can change it to exponential form to determine the answer. Below we illustrate the formula to convert log to exponential form:

Next, we convert the log into exponential:

Now we will solve for
Answer: The precise answer is 2/3x + 17
Step-by-step explanation:
A) The cost to send a package that weighs 3.2 pounds is $4.13. Since this weight exceeds 3 pounds but remains below 4 pounds, we have to refer to the pricing that applies to 4-pound packages (see the attached document for pricing details).
b) To illustrate the Media Mail shipping costs based on the weight of the books, a line graph is appropriate. In this graph, the weight in pounds is represented on the x-axis and the shipping costs on the y-axis.
c) The graph depicting the Media Mail shipping costs as a function of book weight will be represented by the equation: f(x) = 2.69 + 0.48(x-1)