Pre-Final Assessment (Grade 9)

A sequence has term-to-term rule by multiply by 4 then subtract it with 6. What is 4th term in the sequence?

• 16

• 12

• 10

• 8

Write this number into a whole number: 2.8 ÷ 10^-2

• 280

• 28

• 2.8

• 0.28

Write this number into a standard form: 0.0089

• 8.9 × 10^-4

• 0.89 × 10^-4

• 0.0089 × 10^-3

• 8.9 × 10^-3

Work out:

• t²⁴

• t²²

• t¹⁸

• t¹²

What is the 20^th term of this sequence shown below:

7, 4, 1, -2, …

• -49

• -50

• 49

• 50

What are the next 3 terms in the following geometric sequence:

512, 256, 128, ___, ___, ___, ...

• 32, 8, 2

• 64, 32, 18

• 64, 32, 16

• 1024, 2048, 4096

Sweet Time Bakery just opened and is increasing the number of items they bake monthly. The bakery made 56 carrot cakes in January, 63 carrot cakes in February, 70 carrot cakes in March, and 77 carrot cakes in April. If the pattern continues, how many carrot cakes did they sell in total for 2 years?

• 3,276

• 1,134

• 217

• 84

Find the area of this triangle!

• 9x

• 6x + 3

• 6x² - 3x

• 6x² + 3x

What is the best factorisation of this expression: 2x² - 7x + 3?

• (2x - 1)(x - 3)

• (2x + 1)(x - 3)

• (2x - 1)(x + 3)

• (2x + 1)(x + 3)

Expand and simplify: (x – 6)(x + 8)!

• x² + 2x + 48

• x² + 2x – 48

• -x² + 2x – 48

• x² - 2x – 48