One side of the square, RA, is 2a cm. So the area of the square is (2a)2 = 4a2 cm2
What is 18 divded 5
A = h/2*(a + b) So 2A/h = a + b and therefore, a = 2A/h - b
2*9 - 5 = 18 - 5 = 13
if f(x) = 3x - 10, then whatever is put (substituted) for x in the "f(x)" bit is substituted for x in the "3x - 10" bit. Thus f(2a) = 3(2a) - 10 = 6a - 10.
a + a + a - 2a = 3a - 2a = a
4
6
a = 26
It is the expression 3 + 2a.
We have, 2a + 24 = 30or, 2a = 30-24or, 2a = 6or, a = 6/2 = 3.Therefore, a equals 3 or simply a=3
a= (+a) or a= (-) b= 2a b= 2a c= (-a) c= (+a)
3.5
2a+54=38 2a=38-54 2a=-16 a=-16/2 a=-8
-2a - 4 = -16.8 -2a = -12.8 a = -12.8/-2 a = 6.4
A equals 20.
-2a + 5 = 1 -2a = -5 + 1 -2a = -4 a = -4/-2 a = 2