Number
Round 0.739999 to 4 significant figures (4 s.f.)
0.7400
Solve the simultaneous equations
3x – 2y = 7
7x + 2y = 13
x = 2
y = -1/2
Evaluate f(x) = 2x - 3 when x = 4.
What is the mode 2,2,3,3,4,5,6,6,6,7,7,7,8
6 and 7
Where is Ms Whitelaw from?
Sydney
Write 240 as a product of its prime factors.
2 × 2 × 2 × 2 × 3 × 5 or 24 x 3 x 5
Solve 4(2x−3)=5x+6.
x = 6
A straight line has equation 4y – 5x = 2
Work out the gradient of this line.
5/4
Data set: 4,7,2,9,5,8,3
What is the median?
5
What is Ms Whitelaw's second favourite subject?
History
Write down the value of 82/3.
4
Solve the quadratic inequality by factorising.
x2 - x - 12 < 0.
-3<x<4
f(x) = 5x - 2 and g(x) = (x + 3)2.
Evaluate g(f(-2)).
g(f(-2)) = 81
Five numbers have a mean of 10. Four of the numbers are: 8, 12, 6, and 14.
What is the missing number?
10
Ms Whitelaw's favourite sport.
Cycling
In a sale normal prices are reduced by 20%. A washing machine has a sale price of $464.
By how much money is the normal price of the washing machine reduced?
$116
Expand and Simplify
(x+5)(x-3)(2x-1)
2x3 +3x2-32x+15
Find the roots of the parabola y=-2x2+2x+4.
x = -1, x = 2
A bag contains 3 red, 4 blue, and 5 green counters. Two counters are drawn with replacement.
What is the probability that at least one is green?
95/144
The year I finished high school has this property: it was the last year before a leap year. What year was it?
2015
Simplify (4.8 x 10-3) / (6 x 10-7) and write your answer as a product of prime factors.
26 x 53
Solve for x.
42x - 3 = 1/(2x - 1)
x = 1
Find the inverse of the function.
f(x)=(x+2)/(x+3)
(3x-2)/(1-x)
Sami asked 60 people which sports they liked from rugby, football and cricket.
8 people like all three sports. 17 people like rugby and football. 13 people like football and cricket. 19 people like rugby and cricket. 35 people like football. 27 people like cricket 30 people like rugby.
How many people liked neither rugby or football or cricket?
9
In the year Ms Whitelaw was born, Wifi was standardised, the movie Titanic was released, the first animal was cloned, and Netflix was founded. What year was it?