Random Math
Transpose p= r + km; for k
What is k = p - r/m
Solve : 3 + 6 × ( 5 + 4) ÷ 3 - 7
What is 14
Find the x values for: 5x² + 7x + 2 = 0
x = -⅖ and x = -1
What theorem states: "In a right-angled triangle, the square of the hypotenuse side is equal to the sum of squares of the other two sides“
What is Pythagoras or Pythagorean theorem
The value of pi
What is 3.14159....
Solve the simultaneous equations: 3x + y = 9 and 2x - y = 11
y = -3 and x = 4
A man is currently 4 times older than his son. In 10 years, the man will be three times older than his son. What is the man’s age presently?
80
Solve: x2 + x - 12 = 0
x = -4 and x = 3
The generic form of a quadratic equation
What is ax² + bx + c = 0
Angles greater than 180° but less than 360°
What are reflex angles
The difference of two numbers is 3 and the sum of 3 times the larger one and twice the smaller one is 19. Find the two numbers.
What is 2 and 5
A salesman sold twice as much pears in the afternoon than in the morning. If he sold 360 kilograms of pears that day, how many kilograms did he sell in the morning and how many in the afternoon?
120 kg in the morning
240 kg in the evening
Factorize the quadratic: 6x2 + 5x - 6= 0
(2x + 3) (3x - 2)
State the quadratic equation
-b± √(b^2-4ac)/2a
What is the name for the longest side of a right-angled triangle?
What is hypotenuse
Factorize completely: 2a2 + ab - 4ac - 2bc
(a - 2c) (2a + b)
A rectangle field has an area of 300 square meters and a perimeter of 80 meters. What are the length and width of the field?
Length - 30 m
width- 10 m
Solve: x2 - 8x + 15 = 0
x = 3 and x = 5
What is the general equation of a line?
y = mx + c
Which branch of mathematics uses symbols to represent unknown quantities?
What is Algebra