Section 8 Higher Flashcards
How many milligrams in a gram?
1000
What is the gradient of a straight line perpendicular to the straight line with gradient negative two thirds?
3/2 as perpendicular gradients multiply to make negative 1.
What formula can you use to find the area of a triangle when you are given two sides and the included angle?
Half x a x b x sin(C)
In a set of 19 numbers, which number is the lower quartile?
The fifth number
Sketch y = x³
What makes two vectors equal?
They have the same length (magnitude) and direction
If the length scale factor is k, what is the area scale factor?
k²
What’s the name for a quadrilateral which has all four vertices touching the circumference of a circle?
Cyclic quadrilateral
In set notation what is meant by the complement A’?
Not A
What’s the sum of the exterior and interior angle of any polygon?
180 degrees
What’s the value of cos 0?
1
What do we call this sequence and how do we get the next term? 1, 1, 2, 3, 5, 8, ….
Fibonacci sequence: Add the previous two terms
