D Question 4
Apoll of 100 senior citizens in a retirement community asked about the types of
electronic communication they used. The table shows the joint and marginal frequencies
from the poll results.
If you are given that one of the people polled uses text messaging, what is the
probability that the person is also using e-mail? Express your answer as a decimal. If
necessary round your answer to the nearest hundredth.
Uses text messaging
Total
08
Uses e-mail
Yes No
Yes 0.16 0.64
No 008 0.12
Total 0.24 0.76
02
1

An energy plant is looking into putting in a system to remove harmful pollutants from its emissions going into earth's atmosphere. the cost of removing the pollutants can be modeled using the function c = 25000p/100 -p what is the vertical asymptote?

In one day there are too high tides into low tides and equally spaced intervals the high tide is observed to be 6 feet above the average sea level after six hours passed a low tide occurs at 6 feet below the average sea level in this task you will model this occurrence using a trigonometric function by using x as a measurement of time assume the first high tide occurs at x=0. a. what are the independent and dependent variables? b. determine these key features of the function that models the tide: 1.amplitude 2.period 3.frequency 4.midline 5.vertical shift 6.phase shift c. create a trigonometric function that models the ocean tide for a period of 12 hours. d.what is the height of the tide after 93 hours?

Complete each statement from the information given and the triangle criterion you used. if the triangles cannot be shown to be congruent, leave the box for the second triangle blank and choose for reason “cannot be determined.” carbon - regular hexagon. ∆can ≅ ∆ by