Maths Flashcards
In the following expression, what numbers can ‘y’ be? (Standard form)
y x 10^4
Any number between 1 and 10
‘^’ means to the power
What is the formula for the volume of a cylinder?
π x radius^2 x height
‘^’ means to the power
What is the formula for the surface area of a cylinder?
2 x π x radius^2 x height + 2 x π x radius x height
‘^’ means to the power
What is the formula for the volume of a cone?
1/3 x π x height x radius^2
‘^’ means to the power
What is the formula for the surface area of a cone?
π x r^2 + π x radius x slanted edge length
‘^’ means to the power
What is the formula for the volume of a sphere?
4/3 x π x radius^3
‘^’ means to the power
What is the formula for the surface area of a sphere?
4 x π x radius^2
‘^’ means to the power
What is the formula for the volume of a pyramid?
1/3 x base area x height
What is the formula for proportion?
y = kx
What is the formula for inverse proportion?
y = k/x
What are the 3 ways to solve for 0 in a quadratic equation?
Factorising
Completing the square
Quadratic equation
What is the quadratic formula?
x = -b x +/-SqRt(b^2 - 4ac) / 2a
‘^’ means to the power
What sides of a triangle does ‘sin’ refer to?
Opposite / hypotenuse
What sides of a triangle does ‘cos’ refer to?
Adjacent / hypotenuse
What sides of a triangle does ‘tan’ refer to?
Opposite / adjacent