Answer:
Step-by-step explanation:
2x + 3y = 51........(1)
- x+2y = 8...........(2)
Making x as subject in equation (2)
-x = -2y + 8
x = 2y - 8.........(3)
Substituting (3) in (1)
2(2y - 8) + 3y = 51
4y - 16 + 3y = 51
Collecting like terms
4y + 3y = 51 + 16
7y = 67
y = 67/7
y = 9 4/7
And x = 2y - 8
x = 2(67/7) - 8
x = 134/7 - 8
x = (134 - 56)/7
x = 78/7
x = 11 1/7
Answer:
the answer is 28.23
Step-by-step explanation:
just subtract them to know the difference between the estimate and the actual
As the symmetry of axis is x=6, the mirror point of (2,8) will be (10,8)
Answer:
A = 9.9648
Step-by-step explanation:
if the triangle is equilateral =>
P = 3L => L = 14.4/3 = 4.8
A = L²√3/4
= (4.8)²√3/4
= 23.04√3/4
= 5.76×1.73
= 9.9648
