Mid-term breaking is applied to:
- (A) Linear equations
- (B) Perfect squares
- (C) Polynomial functions
- (D) Quadratic equations
- (D) Quadratic equations
Mid-term breaking, also known as splitting the middle term, is a factorization technique applied to solve or simplify quadratic equations in standard form i.e. The technique involves determining two numbers whose product is the product of the first and last coefficients.
What is the next term for the sequence 486, 162, 54, 18, 6,______.
- (A) 3
- (B) 2
- (C) 1
- (D) 0
- (B) 2
What is the value of: 0.004 × 0.5 = _______?
- (A) 0.2
- (B) 0.02
- (C) 0.002
- (D) 0.0002
- (C) 0.002
- Solution: Ignore the decimals for the multiplication and treat the numbers as integers: 4 × 5 = 20
- Count the total number of decimal places. Then multiply 0.004 by 0.5.
- Since multiplying by 0.5 is the same as taking half, you can do 0.004 ÷ 2 = 0.002.
- So, the correct result is: (C) 0.002
In the equation of a straight line, what does the letter ‘C’ represent?
- (A) Gradient
- (B) y Intercept
- (C) x Intercept
- (D) y Coordinate
- (B) y Intercept
- Solution: The general equation of a straight line is represented as:
- y = mx + c
- In this equation, m represents the slope of the line, and c represents the y-intercept.
- The y-intercept is merely the value of y when x is 0, that is, where the line intersects the y-axis.
- Therefore, the correct answer is: (B) y Intercept
When 73 is added to 89 and the amount is doubled, it gives the same result as the square of 18. What is the answer?
- (A) 164
- (B) 162
- (C) 260
- (D) 324
- (B) 162
73 + 89 = 162
2 × 162 = 324
18² = 324
What devices accept data from outside the computer and transfer in into the CPU?
- (A) Analogue to digital converters
- (B) Sensors
- (C) Input devices
- (D) Digital devices
- (C) Input devices
Input devices are hardware components that extract data or instructions from the outside world and put them into a form that the CPU can process. They act as the primary interface between the user or the real world and the computer system. Examples of input devices include keyboards, mice, scanners, and microphones.
Which short cut key is used to insert a new slide in power point presentation?
- (A) Ctrl + S
- (B) Ctrl + M
- (C) Ctrl + N
- (D) Ctrl + B
- (B) Ctrl + M
The correct shortcut to insert a new slide in PowerPoint is actually Ctrl + M. To insert a new slide in the Normal View, you can use the shortcut Ctrl+M. It will insert a new slide with the same layout as the current slide. Some other useful shortcuts are Ctrl+N to create a new presentation and Ctrl+S to save the presentation.
Spam or fraudulent e-mails are also called:
- (A) Phishing scams
- (B) Junk mail
- (C) Pharming scams
- (D) Malware viruses
- (B) Junk mail
Unwanted or fraudulent emails are normally referred to as junk mail. Phishing scams are emails that target the theft of your personal details. Pharming scams are emails that direct you to fake websites. Malware viruses are software programs that are malicious. Therefore, the correct answer is: (B) Junk mail
Who was the inventor of “Mouse”?
- (A) Douglas Engelbart
- (B) Ada Lovelace
- (C) Charles Babbage
- (D) Latham Sholes
- (A) Douglas Engelbart
The first computer mouse was developed by Douglas Engelbart and his team at the Stanford Research Institute in 1963-64. The original mouse was a simple wooden box with two cross-mounted metal wheels that detected movement in the X and Y axes. It was patented in 1970 with the name “X-Y Position Indicator for a Display System,” but it was nicknamed the mouse because of the tail-like cord. Engelbart first demonstrated the mouse to the world in 1968 in a historic presentation known as “The Mother of All Demos.”
Which is the largest hardware company of computers?
- (A) Microsoft
- (B) Dell
- (C) HP
- (D) My Space
- (C) HP
HP (Hewlett-Packard) is generally considered, in academic and general knowledge circles, to be the best hardware firm out of the options available. Specifically, HP has a strong presence in the global market as one of the leading producers of personal computers and printers.