G varies directly as the square of H If G is 4 ... - WAEC Mathematics 2011 Question
G varies directly as the square of H, If G is 4 when H is 3, find H when G = 100
A
15
B
25
C
75
D
225
correct option: a
G (\alpha) H2
G = KH2
4 = K(3)2
4 = 9k; K = (\frac{4}{9})
100 = (\frac{4}{9}H^2)
4H2 = 900
H2 = (\frac{900}{4})
H2 = 225
H = (\sqrt{225})
H = 15
Please share this, thanks:
#WAEC #WAEC
Add your answer
No responses