a. The temp inside an aeroplane is 16.3ºC n the temp outside is 51.7ºC lower. What is the temp outside?
Do 16.3-51.7 and you will get an answer of:-35.4 degrees celsius.
b. Write 0.00578:
(i) in standard form
(ii) correct to 2 significant figures
(iii) correct to 2 decimal places
(i)0.00578 or Five hundred seventy eight hundred thousandths.
(ii) 0.0057
(iii)0.00
c. State whether the following are rational or irrational:
(i) 0.625
(ii) square root of 7
(iii) square root of 121
(iv) 3square root of 27
(v) pi
(i)Rational
(ii)Irrational
(iii)Rational
(iv)Rational
(v)Irrational
