Explanation

•  Newspaper : Press : : Cloth : mill
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• Just as a newspaper is prepared in a press, the cloth is manufactured in the mill.
  

Explanation

Saudi Arabia, is a country on the Arabian Peninsula in Western Asia.

second-largest in the Arab world.

largest in Western Asia. 

Dialing code: +966 

Capital: Riyadh

Currency: Saudi riyal

King: Salman of Saudi Arabia

Prime minister: Mohammed bin Salman Al Saud

Explanation

Scanner converts hardcopy into softcopy while Printer converts softcopy into hardcopy. 

Explanation

• software in computer can:
• enhance the quality of hardware,
• increase spending on CPU,
• increase computer security
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• Alan Turing is credited with being the first person to come up with a theory for software in 1935,
• The history of software and its development can be traced to the early nineteenth century. 
  
The history of software development began in England in 1948

• 
  ****
  
• Software is a set of instructions, data, or programs used to operate computers and execute specific tasks.
  
• It is the opposite of hardware
• 
  
• ***
• Graphical representation is Software in Computer technology
  

Explanation

• the sulfuric acid discovered by Jabir bin hayyan
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• Jabir bin hayyan called the Father of  Arab Chemistry
• He was born in the city of Tus in the province of Khorasan in Iran in 721 AD.
• Jabir bin hayyan  one of the founders of modern pharmacy
  ***
  
• how Jabir Ibn Hayyan discovers sulfuric acid.?
• Jabir got to discover the acids mentioned above through the distillation of several salts together with sulfuric acid. 

Explanation

• Two matrices A and B are said to be conformable for multiplication. If the number of columns in A is equal to the number of rows in B.
• according to the defination of matrix option B will be consider as correct option
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• ?additional information 
• If two matrices have the same dimensions (number of rows and number of columns), they are conformable for addition
  

Explanation

• Q U Q!= R
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• Q=rational no. s
• 
  
• Q! = everything except it in the set here we take it as irrational no. s
• 
  
• rational no. s + irrational no. s = real no. s
• so the answer is R
• ***
additional information: ?

• 
  The letters R, Q, N, and Z refer to a set of numbers such that:
• 
  
• R = real numbers include all real numbers [-inf, inf]
• 
  
• Q= rational numbers ( numbers written as ratio)
• 
  
• N = Natural numbers (all positive integers starting from 1. (1,2,3....inf)
• 
  
• z = integers ( all integers positive and negative ( -inf, ..., -2,-1,0,1,2....inf)

Explanation

• the triangle where all side is different in length is called a scalene triangle.
• A scalene triangle is a triangle whose all sides are unequal and all angles have different measures
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Explanation

• true about logarithms is: both characteristic and mantissa will always be positive
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• the characteristic of the logarithm of a number may be positive or negative but the mantissa is always positive.
•  Logarithms are always written with the decimal part positive.
• ∴ log 0.03 = -2 + a positive fraction
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• the logarithm of a number is the exponent to which another fixed value, the base must be raised to produce that number. eg. the logarithm of 1000 to base 10 is 3, as 10 to the power 3 is 1000
  

Explanation

Explanation:

Let the given points be A(5,-7) and B(9,8)


A(5,-7) and B(9, 8)

Here,

X1 = 5 , Y1 = -7 and X2 = 9, Y2 = 8


By using the distance formula, we have

AB² = (X2-X1)² + (Y2-Y1)²

AB² = (9-5)² + (8-(-7))²

AB² = (4)² + (15)²

AB² = 16+225


AB² = 241

AB = ✓241 = 15.5 units.

Hence,


Distance between the points A(5,-7) and B(9,8) is 15.5 units.