year 9 advanced maths revision sheet 50 questions

1. Express 791 in scientific notation.

2. The stem and leaf plot below shows the age of people who enter through thegates of a concert in the first 5 seconds.

Key: 1 | 2 = 12 years old

a. How many people passed through the gates in the first 5 seconds?

b. What was the age of the youngest person?The youngest person was years old.

c. What was the age of the oldest person?The oldest person was years old.

d. What is the age difference between the youngest and oldest person?

3. Expand the following perfect square: 5x+ 3y

4. State whether or not these lines are perpendicular.L1: y= x+ 5L2: y= x 4

5. What is the gradient of any line that is perpendicular to y= 6 x?

6. Simplify: 10 + 10 10

7. James enters an elevator at the 6 floor above ground (the ground floorbeing zero). The elevator goes down 3 floors, then up 6 floors and finally itgoes down 2 floors.

( ) 2

YesA

NoB

th

a. Does James end up above or below the ground floor?

b. On which floor does he end up?

8. Find the surface area of the composite figure shown, correct to 2 decimalplaces.

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