Section 9 Higher

Question 1

In set notation what does the intersection A∩B represent?

Answer 1

A and B

Question 2

Evaluate 1000 to the power of one third

Answer 2

10

Question 3

What’s the value of sin 90?

Answer 3

1

Question 4

Complete the circle theorem: ‘The angle at the centre is …”

Answer 4

Twice the angle at the circumference.

Question 5

Sketch y = 1 / x

Answer 5

This is the reciprocal graph

Question 6

On a velocity time graph what does the gradient represent?

Answer 6

Acceleration

Question 7

Complete the circle theorem: ‘Opposite angles in a cyclic quadrilateral…’

Answer 7

Sum to 180 degrees

Question 8

List the first 5 cube numbers

Answer 8

1, 8, 27, 64, 125

Question 9

In a grouped frequency table where x represents midpoint and f represents frequency what formula can we use to find an estimate of the mean?

Answer 9

Sum of (f times x) divided by sum of f

Question 10

1cm on a map represents 1m on the ground. How would this be expressed using a ratio scale?

Answer 10

1:100

Question 11

Write down the Sine Rule

Answer 11

a/sin(A) = b/sin(B)

Question 12

If n is an integer, what algebraic term can we use to express an even number?

Answer 12

2n