[solved] – Question 93466
What is the value proposition that Apple Pay offers consumers? How about merchants?
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[solved] – Question 93467
We have the following database schema: Computer (vendor, model, machinetype) Model (num, speed, ram, hd, price) Vendor (name, address, phone) Where vendor indicates the manufacturer of a computer, and machine type takes values such as “desktop”, “laptop” and “server”. Underline indicates the primary key. Following inclusion dependencies hold: vendor ⊆ name, and model ⊆ num. Express following queries in relational algebra: A. Find all the vendors who make laptop(s). B. Find the phone numbers of all the vendors who make desktops with speed = 2
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[solved] – Question 93468
We have the following database schema: Computer (vendor, model, machinetype) Model (num, speed, ram, hd, price) Vendor (name, address, phone) Where vendor indicates the manufacturer of a computer, and machine type takes values such as “desktop”, “laptop” and “server”. Underline indicates the primary key. Following inclusion dependencies hold: vendor ⊆ name, and model ⊆ num. Express following queries in relational algebra: A. Find all the vendors who make laptop(s). B. Find the phone numbers of all the vendors who make desktops with speed = 2
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[solved] – Question 93469
For the relations s and r in your study manual of our chapter 2 (i.e., joining two relations), suppose we type a collection of relational algebra queries, and get the following results. A B C D E A 2 a 10 B b 2 a 10 b Please explain how this happened? If you think this result could happen in practice, please write the corresponding relational algebra queries; otherwise, please explain why.
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[solved] – Question 93470
How many levels of abstraction a typical DB system should hold? What’s the purpose of each of these abstraction levels?
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[solved] – Question 93472
What do you think is holding back full VR? 2. Could Google Cardboard help bring VR to the general public? 3. What applications can you think of for 360 video? 4. Why does Google allow employees to spend time on personal projects?
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[solved] – Question 93473
Should citizens have a choice in whether a smart meter is installed in their homes?
2. Why was testing so important for Yedas? 3. How will smart meters make electricity production more efficient? 4. What are some of the privacy concerns with smart meters?
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[solved] – Question 93482
# Instructions
# Import the Pandas library.
# Use the Pandas function read_csv() to read the file “Auto.csv” into a DataFrame named auto.
# Use the type() and print() functions to display the type of auto to confirm that it’s a DataFrame object.
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[solved] – Question 93483
A number of the form a + ib, in which i2 = -1 and a and b are real numbers, is called a complex
number. We call the real part and b the imaginary part of a + ib. Complex numbers can also be
represented as ordered pairs (a, b). The addition and multiplication of complex numbers are defined
by the following rules:
(a + ib) + (c + id) = (a + c) + i(b + d )
(a + ib) * (c + id) = (ac – bd) + i(ad + bc)
Using the ordered pair notation, these rules are written as:
(a, b) + (c, d) = ((a + c), (b + d ))
(a, b) * (c, d) = ((ac – bd ), (ad + bc))
C++ has no built-in data type that allows us to manipulate complex numbers. Construct a data type,
complex Type, that can be used to process complex numbers. Overload the stream insertion and
stream extraction operators for easy input and output. We will also overload the operators + and *
to perform addition and multiplication of complex numbers. If x and y are complex numbers, we can
evaluate expressions such as x + y and x * y.
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[solved] – Question 935
i need to simulate an electrical circuit in matlab using simulink.. and some exercises to do on the circuit related to design of control system. where can i get it done????
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