2023 HY quick review

What are the perimeter and area for this shape, correct to 2 decimal places?

• P = 12.71 cm,

  A = 16.77 cm²

• P = 20.71 cm,

  A = 22.07 cm²

• P = 25.42 cm,

  A = 29.14 cm²

• P = 18.36 cm,

  A = 43.27 cm²

• P = 17.71 cm,

  A = 17.25 cm²

Which of the following is equivalent to 0.04m² ?

• 4 cm²

• 40 mm²

• 0.0004 cm²

• 400 cm²

• 0.00004 km²

A square-based pyramid has a base area of 30 m² and a height of 7 m. What is its volume?

• 105 m³

• 70 m³

• 210π m³

• 210 m³

• 140 m³

What is the curved surface area of this half cylinder, in exact form?

• 80π cm²

• 105π cm²

• 92.5π cm²

• 120π cm²

• 160π cm²

The volume of a sphere of diameter 30 cm is closest to:

• 113 097 cm³

• 2827 cm³

• 11 310 cm³

• 14137 cm³

• 7069 cm³

The number of tails obtained from 100 tosses of two coins is shown in the table.

From this table, what is the experimental probability of obtaining two tails?

• 0.23

• 0.25

• 0.2

• 0.5

• 0.77

• 1.4

• 0.8

• 0.6

• 0

• 0.58

From the information in the Venn diagram, what is P(A | B)?

A bag of 5 marbles contains 2 green ones. Two marbles are selected without replacement.

What is the probability of selecting the 2 green marbles?