Computers and Technology, 07.06.2020 22:57 dan20012001
The EPA sets national air-quality standards for common air pollutants. The
data table shows the change in concentrations of these pollutants over time.
Which conclusion do the data support?
A. Monitoring concentrations of pollutants is too expensive.
B. With monitoring, the concentration of every pollutant has
decreased.
O c. With monitoring, the concentration of every pollutant has
increased.
D. Monitoring concentrations of pollutants has been ineffective.
Answers: 2
Computers and Technology, 22.06.2019 23:50
You need to design a circuit that implements the functions in the following table: s0 s1 function0 0 a + 10 1 a – b1 0 a + b1 1 a – 1s0 and s1 are 1-bit control inputs to select the function of the circuit. inputs a and b are 4-bitnumbers in 2s complement form. the output is also a 4-bit number in 2s complement form.you are allowed to use only one ttl 7483 4-bit adder to implement all the functions. but anynumber of other components (except the adder) can be used.hint: design a combinational logic circuit to modify the input b and the “carry input” of theadder depending on the control inputs s0 and s1.important: lab grade will depend on the working of the circuit & will be checked of by your labinstructor.1. is the output valid for the following input combinations: a. s0 = 0, s1 = 0, a = 7, b = 3? b. s0 = 0, s1 = 1, a = 7, b = 3? c. s0 = 1, s1 = 0, a = -4, b = -5? d. s0 = 1, s1 = 1, a = -8, b = 6? 2. what is the range of inputs (for both a and b) that will produce the valid output for all the functions?
Answers: 3
Computers and Technology, 24.06.2019 13:30
Which of the following is not a “fatal four” event?
Answers: 2
Computers and Technology, 24.06.2019 13:30
What is the most important for you to choose before you build a network?
Answers: 1
Computers and Technology, 25.06.2019 04:30
What is the purpose of network permissions? a)to control access to network resources b)to convert to wireless networking c)to enable the installation of nics d)to reduce operating costs
Answers: 1
The EPA sets national air-quality standards for common air pollutants. The
data table shows the cha...
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