Starter Quiz
Question 1 of 6
1
of 6
In which of these formulae is $$a$$ the subject?
Select 2 answers
$$a + 1 = bc$$
$$\frac{b+c}{3}=a$$
$$a^2=c^2-b^2$$
$$bc + 5 = \frac{a}{4}$$
$$ a=\frac{2b + 5}{c(2-b)} + d$$
The subject of a formula is a variable that is expressed in terms of other variables. It should have an exponent of 1 and a coefficient of 1.
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