3. Furnace repair bills are normally distributed with a mean of 269 dollars and a standard
deviation of 20 dollars. If 64 of these repair bills are randomly selected, find the
probability that they have a mean cost between 269 dollars and 271 dollars.
a) 0.5517
b) 0.2119
c) 0.2881
d) 0.7881

Sarah used her calculator to find sin 125 degrees. she wrote down sin sin125 degrees.57. how could sarah recognize that her answer is incorrect?

A. plot the data for the functions f(x) and g(x) on a grid and connect the points. x -2 -1 0 1 2 f(x) 1/9 1/3 1 3 9 x -2 -1 0 1 2 g(x) -4 -2 0 2 4 b. which function could be described as exponential and which as linear? explain. c. if the functions continue with the same pattern, will the function values ever be equal? if so, give estimates for the value of x that will make the function values equals. if not, explain why the function values will never be equal.

Ineed with math stuff it involves graphs