Brad recorded the number of visitors at the local science museum during the week: Day
Visitors
Tuesday
18
Wednesday
24
Thursday
28
Friday
30
He expected to see 25 visitors each day. To answer whether the number of visitors follows a
uniform distribution, a chi-square test for goodness of fit should be performed. (alpha = 0.10)
x2= 2
(0-E)
E
What is the chi-squared test statistic? Answers are rounded to the nearest hundredth.
01.12
O 2.54
O 3.36

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

Adecibel is a logarithmic unit that can be used to measure the intensity of a sound. the function y = 10logx gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity. the reference intensity is generally set at the threshold of hearing. use the graphing utility to graph the decibel function.a whisper has a sound intensity of 30 decibels. use your graph to you complete the following statement. the sound intensity of a whisper is times the reference intensity.

(05.03 mc) part a: explain why the x-coordinates of the points where the graphs of the equations y = 4x and y = 2x−2 intersect are the solutions of the equation 4x = 2x−2. (4 points) part b: make tables to find the solution to 4x = 2x−2. take the integer values of x between −3 and 3. (4 points) part c: how can you solve the equation 4x = 2x−2 graphically? (2 points)