General Knowledge Flashcards
1
Q
What’s a repciprocal?
A
1 divided by something e.g. 1/0.625
2
Q
What do you need to do when asked an estimation question ?
A
Round everything to 1s.f then solve
3
Q
How do you find the total degrees of interior angles in a shape (polygon)?
A
(N-2)x180= sun of interior angles
N= number of sides
4
Q
What’s the sun of exterior angles?
A
360 degrees
5
Q
Density formula
A
Density= mass/volume
6
Q
A
2
Y=x
(Quadratic)
7
Q
A
Y=x
(Linear)
8
Q
A
3
Y=x
(Cubic)
9
Q
If the line on a graph is going down (top left to bottom right )
It has a …
A
Negative gradient (e.g. -x)
10
Q
Area of a similar shape is
A
Multiplier ^2
11
Q
Volume of similar shapes is
A
Multiplier ^3
12
Q
Complete the square formula
A
(X+b/2)^2 -(b/2)^2 +c
13
Q
How to find the turning point of a equation
A
Use cts : (x+h)^2+k
Turning point is :(opposite sign h,k)
