The gradient function of a curve
Find the equation of the curve. (2 marks)
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Aussie Maths & Science Teachers: Save your time with SmarterEd
The gradient function of a curve
Find the equation of the curve. (2 marks)
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Evaluate
Find
The scatterplot shows the relationship between expenditure per primary school student, as a percentage of a country’s Gross Domestic Product (GDP), and the life expectancy in years for 15 countries.
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What is the interquartile range? (1 mark)
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Would this country be an outlier for this set of data? Justify your answer with calculations. (2 marks)
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Blood alcohol content of males can be calculated using the following formula
where
What is the maximum number of standard drinks that a male weighing 84 kg can consume over 4 hours in order to maintain a blood alcohol content (BAC) of less than 0.05? (3 marks)
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The cost of hiring an open space for a music festival is $120 000. The cost will be shared equally by the people attending the festival, so that
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An aerial diagram of a swimming pool is shown.
The swimming pool is a standard length of 50 metres but is not in the shape of a rectangle.
(i) Given
1 cm =
(ii) If the length of a carpark next to the pool measured 5 cm (not shown), how long would it be in real life? (1 mark)
(iii) In the diagram of the swimming pool, the five widths are measured to be:
The average depth of the pool is 1.2 m
Calculate the approximate volume of the swimming pool, in cubic metres. In your calculations, use TWO applications of Simpson’s Rule. (3 marks)
(i)
(ii)
(iii)
A radial compass survey of a sports centre is shown in the diagram.
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Alex is buying a used car which has a sale price of $13 380. In addition to the sale price there are the following costs:
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The weight of an object on the moon varies directly with its weight on Earth. An astronaut who weighs 84 kg on Earth weighs only 14 kg on the moon.
A lunar landing craft weighs 2449 kg when on the moon. Calculate the weight of this landing craft when on Earth. (2 marks)
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Solve the equation
Expand
Heather’s car uses fuel at the rate of 6.6 L per 100 km for long-distance driving and 8.9 L per 100 km for short-distance driving.
She used the car to make a journey of 560 km, which included 65 km of short-distance driving.
Approximately how much fuel did Heather’s car use on the journey?
A child who weighs 14 kg needs to be given 15 mg of paracetamol for every 2 kg of body weight.
Every 10 mL of a particular medicine contains 120 mg of paracetamol.
What is the correct dosage of this medicine for the child?
Simplify
Use mathematical induction to prove that
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The point
The point
(i)
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The diagram shows points
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The equation
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(i)
(ii)
(iii)
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A spherical raindrop of radius
where
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A particle moves along a straight line. The displacement of the particle from the origin is
Show that the particle moves in simple harmonic motion with period
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The point
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i.
ii.
Use the substitution
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Find
Consider the function
(i)
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Find
A family of eight is seated randomly around a circular table.
What is the probability that the two youngest members of the family sit together?
Which integral is obtained when the substitution
The binomial theorem states that
(i)
(ii)
(iii)
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i.
ii.
A boat is sailing due north from a point
The shore line runs from west to east.
In the diagram,
From
After sailing for some time the boat reaches a point
(i)
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A particle is moving in simple harmonic motion along the
Its velocity
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(i) |
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(iii)
Let
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At the front of a building there are five garage doors. Two of the doors are to be painted red, one is to be painted green, one blue and one orange.
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A radio transmitter
A car is travelling away from
Find an expression in terms of
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Let
where
The polynomial
When
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i.
ii.
The derivative of a function
Find
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Five ordinary six-sided dice are thrown.
What is the probability that exactly two of the dice land showing a four?
Leave your answer in unsimplified form. (1 mark)
Solve
Let
The diagram shows two identical circular cones with a common vertical axis. Each cone has height
The lower cone is completely filled with water. The upper cone is lowered vertically into the water as shown in the diagram. The rate at which it is lowered is given by
where
As the upper cone is lowered, water spills from the lower cone. The volume of water remaining in the lower cone at time
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i.
ii.
iii.
Consider the function
The diagram shows two distinct points
(i) | ![]() |
(ii)
(iii)
(iv)
The equation of motion for a particle undergoing simple harmonic motion is
where
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Find the values of
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ii.
iii.
iv.
Alex’s playlist consists of 40 different songs that can be arranged in any order.
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Find an expression for the coefficient of
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