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guapka [62]
3 years ago
15

Which of the following bit patterns represents the value -9 in two’s complement notation?

Computers and Technology
1 answer:
nadya68 [22]3 years ago
5 0

Answer:

B. 11110111

Explanation:

Binary representation of number 9 = 00001001

Binary representation of -9 would involve calculating the twos complement representation of 00001001

First we compute the ones complement of this number by reversing the bits.

00001001 => 11110110

Next we calculate the twos complement representation by adding 1 to the ones complement.

11110110+1 = 11110111

So the final representation is 11110111.

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lana66690 [7]

Answer:

Webcam

Explanation:

A webcam is mainly used for taking images or videos from the computer. the webcam is a combination of two basic words i.e. web and camera. webcam can be connected to any computer via USB. It can be mounted on the desktop and sometimes it comes inbuilt on the laptops.

A webcam is also used for face recognition function to login to a computer system.

so according to the scenario, the most appropriate answer is a webcam.

6 0
3 years ago
Which of the following is true about STEM education? STEM education is focused on understanding rather than applying scientific
Soloha48 [4]

Answer:

C). STEM students are encouraged to blend and expand their knowledge of all four subject areas.

Explanation:

STEM education is characterized as a learning and development approach that focuses upon an amalgamation of four subject areas including science(S), technology(T), engineering(E), and Mathematics(M). Thus, each letter stands for a subject domain and this integration of four subjects primarily aims to 'blend and expand the knowledge of the students in these areas' integratively. It helps in developing and sustaining the interests of young learners through this integrated approach which also assists them with unique opportunities. Thus, <u>option C</u> is the correct answer.

5 0
3 years ago
What is the user requirements of an educational app
VARVARA [1.3K]
Ummmmm I don’t know but I wanna know now.....
7 0
2 years ago
Which of these number systems uses the most unique characters?
makvit [3.9K]

Answer:

i say hexadecimals

Explanation:

The hexadecimal numeral system, often shortened to "hex", is a numeral system made up of 16 symbols (base 16). The standard numeral system is called decimal (base 10) and uses ten symbols: 0,1,2,3,4,5,6,7,8,9. Hexadecimal uses the decimal numbers and six extra symbols.

4 0
3 years ago
Which relationship is possible when two tables share the same primary key?
klasskru [66]

Answer:

Many-to-one

Explanation:

Many-to-one relationships is possible when two tables share the same primary key it is because one entity contains values that refer to another entity that has unique values. It often enforced by primary key relationships, and the relationships typically are between fact and dimension tables and between levels in a hierarchy.

6 0
3 years ago
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