4MA0 Higher January 2015 Paper 4 Q13

EdexcelHigherOld spec4 marksStandard Form

(a) Write 0.000076 in standard form. (1)

The area covered by the Pacific Ocean is \(1.6 \times 10^8\) km²
The area covered by the Arctic Ocean is \(1.4 \times 10^7\) km²

(b) Write \(1.6 \times 10^8\) as an ordinary number. (1)

The area covered by the Pacific Ocean is \(k\) times the area covered by the Arctic Ocean.

Scheme	Marks
\(7.6 \times 10^{-5}\)	B1
	(1)

Scheme	Marks
160 000 000	B1
	(1)

Scheme	Marks
\(\dfrac{1.6 \times 10^8}{1.4 \times 10^7}\) or \(\dfrac{16}{1.4}\) or \(\dfrac{80}{7}\) or \(\dfrac{160000000}{14000000}\) or 11.428...	M1
11	A1
	(2)
	(4 marks)