Find the surface area of a sphere whose radius is 3.5cm, correct your answer to one decimal place (π = \(\frac{22}{5}\))

A. 12.8cm²

B. 25.7cm²

C. 77.0cm²

D. 154.0cm²

E. 179.7cm²

Two angles of a triangle are 450 each and its longest side is 12cm. Find the length of one of the other sides

A. 12cm

B. 9\(\sqrt{2}\)cm

C. 6\(\sqrt{2}\)cm

D. 6cm

E. 3\(\sqrt{2}\)cm

The nth term of a sequence is given as 4 x 3(3 - n). Calculate the third term.

A. 12

B. 32

C. 4

D. 3

E. 1

If y varies inversely as x², how does x vary with y?

A. x varies inversely as y²

B. x varies inversely as \(\sqrt{y}\)

C. x varies directly as y²

D. x varies directly as \(\sqrt{y}\)

E. x varies directly as y

Evaluate \(1011_{two}\) + \(1101_{two}\) + \(1001_{two}\) - \(111_{two}\)

A. 10001\(_{two}\)

B. 11001\(_{two}\)

C. 110001\(_{two}\)

D. 11010\(_{two}\)

E. 10001\(_{two}\)

Find the area of a triangle ABC such that a = 16cm, b = 14cm, c = 12cm, leave your answer in surd form

A. 5\(\sqrt{15}\)cm²

B. 7\(\sqrt{15}\)cm²

C. 21\(\sqrt{3}\)cm²

D. 21\(\sqrt{5}\)cm²

E. 21\(\sqrt{15}\)cm²

If the first term of an AP is 1.2 and the common difference is also 2, what is the mean of the first five terms?

A. 2

B. 4

C. 6

D. 8

E. 10