Expand 3(2x − 5).
- 5x − 15
- 6x + 15
- 6x − 15
- 6x − 5
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Expand 3(2x − 5).
Work out 4³.
Simplify 6a − 2a + 5a.
In a right-angled triangle with legs 9 cm and 12 cm, the hypotenuse is:
The interior angle of a regular pentagon is:
A circle has a radius of 7 cm. Calculate the area of the circle, giving your answer correct to 3 significant figures.
A surveyor in Kenya measures two triangular plots of land. Triangle PQR has sides PQ = 12 m, QR = 15 m, and PR = 18 m. Triangle XYZ has sides XY = 8 m, YZ = 10 m, and XZ = 12 m. What is the ratio of the area of triangle PQR to the area of triangle XYZ?
7² equals: