Question 1 [1 mark]

w = P - 2l2

Question 2 [1 mark]

x = 3y - 52

Question 3 [1 mark]

r = √S/(4π)

Question 4 [1 mark]

g = 4π²lT²

Question 5 [1 mark]

a = 2s - utt²

Question 6 [1 mark]

I = VR

Question 7 [1 mark]

f = v/λ

Question 8 [1 mark]

x = bc + a

Question 9 [1 mark]

a = (2sh) - b

Question 10 [1 mark]

h = 2A(a + b)

Question 11 [1 mark]

a = (v² - u²)/(2s)

Question 12 [1 mark]

v = √2E/m

Question 13 [1 mark]

θ = 2Ar²

Question 14 [1 mark]

l = T²g4π²

Question 15 [1 mark]

u = 2st - v

Question 16 [1 mark]

P = QST

Question 17 [2 marks]

u = v - at

Question 18 [1 mark]

b = 2Ah

Question 19 [1 mark]

h = V(πr²)

Question 20 [1 mark]

x = b² - a

Question 21 [1 mark]

r = √A/(4π)

Question 22 [1 mark]

t = -u ± √u² + 2asa

Question 23 [1 mark]

v = √ar or v = -√ar

Question 24 [1 mark]

r = mv²F

Question 25 [1 mark]

x = 4y - 2

Question 26 [2 marks]

a = a sin Bsin A

Question 27 [2 marks]

y = 2x + 3x - 1

Question 28 [2 marks]

x = 2 - yy - 3

Question 29 [2 marks]

x = y + 7y - 2

Question 30 [2 marks]

y = x + 5x - 1

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